October Half Marathons
Trail Half Marathons (T)
Official Walker Friendly Half Marathons in October
18:32 mile / 4 Hour Minimum course time limit= (W)
Symbol only applies to half marathon events
Does NOT meet the Walker Friendly 4 hour minimum (18:32 / mi) = Not Walker Friendly (NWF)
Date
City
State
Oct 1, 2025 (W)
Chadron
Nebraska
Oct 2, 2025 (W)
Oct 3, 2025 (W)
Belle Fourche
Bowman
South Dakota
North Dakota
Oct 4, 2025
​
Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025 (NWF)
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Oct 4, 2025
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Oct 4, 2025 (NWF)
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Oct 5, 2024
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Oct 4, 2025
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Oct 4, 2025 (T)
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025 (W)
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025 (T)
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
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Oct 4, 2025
USRR Haunted Half Marathon, 10k, 5k at Medal of Honor Park
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Flagstaff Marathon, Half Marathon, 10k (Offroad)
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Colorado Springs Marathon & Half Marathon
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The Race Half Marathon & 5k 2025 Registration
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Prairie State Marathon, Half Marathon, 5k 2025 Registration
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​
Indy Half Marathon at Fort Ben
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Little Apple Marathon, Half Marathon, 5k & Relay
​
​
FLATS Trail Half Marathon Registration 2025
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The Betsy Farris Memorial Run 1/2 Marathon, 10k, 5k
​
​
Mainly Marathons Center of the Nation Marathon, Half, 10/5k
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The New Hampshire Marathon, Half Marathon, 10k
​
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Bay Ridge Half Marathon 2025 Registration
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Cary Greenways Tour Marathon, Half Marathon, 10k, 5k
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Towpath Marathon, Half Marathon & 10k
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Lowcountry Trail Half Marathon & 5k
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True to the Brew Trail Run/Hike 13.1 Half Marathon
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Arches Marathon, Half Marathon, 50k, 15k
​
​
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Leavenworth Marathon & Half Marathon
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Freedom's Run Marathon, Half Marathon, 10k, 5k
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S'more Fun Trail Run Half Marathon, 10k, 5k
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Mobile
​
Flagstaff
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Colorado Springs
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Washington
​
Atlanta
​
Long Grove
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Evansville
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Indianapolis
​
Manhattan
​
Slade
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Kirksville
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Columbia
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Waynesville
​
Baker
​
Bristol
​
LeRoy
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Brooklyn
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Cary
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Cleveland
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Johns Island
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Spartanburg
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Moab
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Harrisonburg
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Farmville
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Leavenworth
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Shepherdstown
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Baraboo
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Green Bay
Alabama
​
Arizona
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Colorado
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D.C.
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Georgia
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Illinois
​
Indiana
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Indiana
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Kansas
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Kentucky
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Missouri
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Missouri
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Missouri
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Montana
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New Hampshire
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New York
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New York
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North Carolina
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Ohio
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South Carolina
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South Carolina
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Utah
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Virginia
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Virginia
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Washington
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West Virginia
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Wisconsin
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Wisconsin
Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025 (NWF)
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 5, 2025
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Oct 6, 2024
​
Oct 5, 2025
BHM 26.2 Marathon, Half Marathon & Relay
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Rock'n'Roll San Jose 1/2 Marathon
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Long Beach Marathon, Half Marathon
​
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Kokanee Trail Runs 1/2 Marathon, 10k, 5k
​
Windsor Marathon, Half Marathon, 10k, 5k
​
New Belgium Half Marathon & 5k
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The Bear Chase Trail Half Marathon & 10k
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Garavel SoNo Half Marathon & 5k
​
Bishop Events DC Safe Half & 5k
​
Moscow Mountain Madness Half Marathon, 50k, 5mi
​
Maine Marathon, Half Marathon & Relay
​
Stony Creek Marathon, Half Marathon, 5k, 10k-plus, 50k
​
Medtronic Twin Cities Marathon & inaugural Half Marathon
​
Rock Reno Half Marathon, 10k, 5k, Relay
​
Smuttynose Rockfest Marathon & Half Marathon
​
Jersey Shore Half Marathon 2025 Registration
​
CityTri The JC Green Half Marathon, 10k, 5k
​
ORC Seaside Half Marathon & 5k
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Great Balloon Chase 1/2 Marathon & 5k
​
Wineglass Marathon & Half Marathon
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Historic Hillsborough Half Marathon
​
Northern Ohio Marathon, Half Marathon & Relay
​
Portland Marathon & Half Marathon
​
Palace City Kiwanis Half Marathon, Relay, 10k, 5k
​
Run Crazy Horse 26.2mi, 13.1mi
​
Leaf Peepers Half Marathon & 5k
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Peroni Crawlin Crab Half Marathon & 5k
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Pocahontas Trail Fest Marathon, Half Marathon & Relay
​
​
Rails to Trails Norwalk Marathon, Half Marathon, 5k, 1mi
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Birmingham
​
San Jose
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Long Beach
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Napa
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Lake Tahoe
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Windsor
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Fort Collins
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Morrison
​
Norwalk
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Washington
​
Moscow
​
Portland
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Utica
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Minneapolis
​
Reno
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Hampton
​
Sandy Hook
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Jersey City
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Seaside Heights
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Albuqurque
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Corning
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Hillsboro
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Mentor
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Portland
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Mitchell
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Hill City
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Waterbury
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Hampton
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Chesterfield
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Poulsbo
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Norwalk
Milwaukee
Alabama
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California
​
California
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California
​
California
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Colorado
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Colorado
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Colorado
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Connecticut
​
D.C.
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Idaho
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Maine
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Michigan
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Minnesota
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Nevada
​
New Hampshire
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New Jersey
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New Jersey
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New Jersey
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New Mexico
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New York
​
North Carolina
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Ohio
​
Oregon
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South Dakota
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South Dakota
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Vermont
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Virginia
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Virginia
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Virginia
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Wisconsin
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Wisconsin
Oct 11, 2025
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Oct 12, 2024
​
Oct 11, 2025
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Oct 12, 2024
​
Oct 11, 2025
​
Oct 12, 2024
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
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Oct 11, 2025
​
Oct 11, 2025
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Oct 11, 2025
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Oct 11, 2025
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Oct 11, 2025
​
Oct 11, 2025 (NWF)
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Oct 11, 2025
​
Oct 11, 2025
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Oct 11, 2025
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Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
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Oct 11, 2025
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Oct 11, 2025
​
Oct 11, 2025
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Oct 11, 2025
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Oct 11, 2025
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Oct 11, 2025
USRR Haunted Half Marathon 15/10/5k, 1mi at James D. Martin Park
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Little River Canyon Half Marathon
​
​
Vacation Races Lake Powell Half Marathon
​
Whiskey Row Marathon & Half Marathon
​
Arkansas Marathon, Half Marathon, 10k
​
Long View Marathon, Half Marathon, 5k
​
Breckenridge Road Marathon, Half Marathon, 10k
​
Eversource Hartford Marathon & Half Marathon
​
Bishop Events Kenilworth Half Marathon, 10k, 5k
​
Under the Oaks Run Half Marathon, 10k, 5k
​
Hayden Lake Marathon, Half Marathon, 10k
​
Des Plaines River Trail Races Half Marathon, Marathon, 50 mi
​
​
Hot Cider Hustle Cedar Rapids Half Marathon, 10k, 5k
​
SouthCoast Wind Cape Cod Marathon Half Marathon
​
Hot Cider Hustle Lansing Half Marathon, 10k, 5k 2025 Registration
​
Bemidji Blue Ox Marathon, Half Marathon & 5k
​
Scenic Byway Run Half Marathon, Relay, 5k
​
Gear Western Country Half Marathon & Borton Volvo 5k
​
CityTri Big Forest Half Marathon, 10k, 5k
​
Lake Placid Classic Half Marathon & 10k
​
​
Mo Fall Marathon & Half Marathon
​
ORRC Best Dam Run Half Marathon & 10k Run / Walk
​
Pocono Mountains Marathon, Half Marathon, 10k, 5k
​
Warren County YMCA SuperKwik Challenge Half Marathon, 5k
​
​
Alamo Beer Challenge Battle of Hillotes Half Marathon, 10k, 5k
​
​
Citizens Run Against Cancer Half Marathon & 5k
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The Race on Race Street Half Marathon, 10k, 5k, 1mi
​
​
The Kingdom Challenge Half Marathon, 5k & Relay
​
Bishop Events Racin' to Beat Cancer Half Marathon, 10k, 5k
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LewisGale Salem Half Marathon & 8k
​
Whistlestop Marathon & Half Marathon
​
Zachariah's Acres Fall Run, Walk & Roll Half Marathon, 5k
​
Gadsden
​
Ft. Payne
​
Anchorage
​
Page
​
Prescott
​
Booneville
​
Fort Collins
​
Breckenridge
​
Hartford
​
Washington
​
Jekyll
​
Hayden
​
Vernon Hills
​
Lansing
​
Cedar Rapids
​
Falmouth
​
Lansing
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Bemidji
​
Belle Plaine
​
Long Lake
​
Tuckerton
​
Lake Placid
​
Cincinnati
​
Perrysville
​
Estacada
​
Greentown
​
Warren
​
Greenville
​
Helotes
​
San Marcos
​
Victoria
​
Fort Worth
​
Sandy
​
St. Johnsbury
​
Fairfax Station
​
Salem
​
Ashland
​
Oconomowoc
​
Three Lakes
Alabama
​
Alabama
​
Alaska
​
Arizona
​
Arizona
​
Arkansas
​
Colorado
​
Colorado
​
Connecticut
​
D.C.
​
Georgia
​
Idaho
​
Illinois
​
Iowa
​
Iowa
​
Massachusetts
​
Michigan
​
Minnesota
​
Minnesota
​
Minnesota
​
New Jersey
​
New York
​
Ohio
​
Ohio
​
Oregon
​
Pennsylvania
​
Pennsylvania
​
South Carolina
​
Texas
​
Texas
​
Texas
​
Texas
​
Utah
​
Vermont
​
Virginia
​
Virginia
​
Wisconsin
​
Wisconsin
​
Wisconsin
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
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Oct 12, 2025
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Oct 12, 2025
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Oct 12, 2025
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Oct 12, 2025
​
Oct 12, 2025
Tucson Wicked Half Marathon, 10k, 5k
​
Clo Cow Half Marathon, 10k, 5k
​
Humboldt Redwoods Marathon & Half Marathon
​
​
​
Run Conch Republic Southernmost Half Marathon & 10k
​
​
Hot Cider Hustle Fort Wayne Half Marathon, 10k, 5k
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Prairie Fire Fall Marathon, Half Marathon, 5k
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The Iron Horse Half Marathon & 12k
​
Northshore Half Marathon, 10 Miler & 5k
​
Chestertown Challenge Half Marathon, 5k
​
Nantucket Half Marathon (3 hour course time limit)
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Probility Ann Arbor Marathon, Half Marathon, 10k, 5k
​
The Original Las Vegas Marathon, Half Marathon, 10k, 5k
​
Mohawk Hudson River Marathon & Half Marathon
​
Paine to Pain Trail Half Marathon
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Fall Foliage Half Marathon & 10k
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Amica Newport Marathon and Half Marathon
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Block Island Half Marathon 2025 Registration
​
​
Girlfriends Run for a Cure Half & Quarter Marathon
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Spokane Marathon, Half Marathon, 10k, Relay
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Snohomish River Run Half Marathon, 10k
​
Tucson
​
Petaluma
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Weott
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Westminster
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Pensacola
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Key West
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Athens
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Fort Wayne
​
Wichita
​
Midway
​
Mandeville
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Chestertown
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Nantucket
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Ann Arbor
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Henderson
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Albany
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New Rochelle
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Rhinebeck
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Newport
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Block Island
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Travelers Rest
​
Vancouver
​
Spokane
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Everett
​
Circleville
Arizona​
​
California
​
California
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Colorado
​
Florida
​
Florida
​
Georgia
​
Indiana
​
Kansas
​
Kentucky
​
Louisiana
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Maryland
​
Massachusetts
​
Michigan
​
Nevada
​
New York
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New York
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New York
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Rhode Island
​
Rhode Island
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South Carolina
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Washington
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Washington
​
Washington
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West Virginia
Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 19, 2024
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 19, 2024
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025 (NWF)​
​
Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025 (NWF)
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Oct 18, 2025 (W)
​
Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
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Oct 18, 2025
USRR Haunted Half Marathon, 10k, 5k at Medal of Honor Park
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Creep 'N Crawl Half Marathon, 5k
​
​
SPACEROCK Trail Race Half Marathon, 10k, 5k
​
Mancos Cowboy Half Marathon, 5k & Kids Fun Run
​
Potomac River Run Half Marathon & Full Marathon
​
Country Soul Half Marathon, 10k, 5k 2025 Registration
​
Purdue Boilermaker Half Marathon & 5k
​
​
​
​
Baltimore Running Festival Marathon, Half Marathon
​
Mankato Marathon & Half Marathon
​
Hot Cider Hustle Twin Cities Half Marathon, 5k 2025 Registration
​
Garmin Kansas City Marathon, Half Marathon
​
Twighlight Red Rock Half Marathon, 10k, 5k
​
Cannonball Marathon, Half Marathon, 10k, 5k
​
Mother Earth Brewing Ironclad Half Marathon
​
​
End of the Road Half Marathon & One Tunnel 4 Mile [Day 1]
​
​
Brookings Marathon, Half Marathon & Relay
​
Oktoberfest Trail Run Festival 5k, Half & Full Marathons, 50k
​
Runtastic Haunted Emigration Half Marathon & 5k
​
Bishop Events Harvest Hills Half Marathon, 10k, 5k
​
Deep Hollow Half Marathon & 5k Trail Race 2025 Registration
​
​
​
The Haunted Hustle Half Marathon & Relay
​
Mobile
​
Little Rock
​
Carnelian Bay
​
Agua Dulce
​
Mancos
​
Washington
​
Chicago
​
W. Lafayette
​
Hopkinsville
​
Berea
​
Louisville
​
Baltimore
​
Mankato
​
Bloomington
​
Kansas City
​
Reno
​
Greensboro
​
Kinston
​
Black Mountain
​
Waterfall
​
Cabot
​
Brookings
​
Farmersville
​
Salt Lake City
​
Lorton
​
Lynchburg
​
Clarkston
​
Kirkland
​
Middleton
​
Nashotah
Alabama
​
Arkansas
​
California
​
California
​
Colorado
​
D.C.
​
Illinois
​
Indiana
​
Kentucky
​
Kentucky
​
Kentucky
​
Maryland
​
Minnesota
​
Minnesota
​
Missouri
​
Nevada
​
North Carolina
​
North Carolina
​
North Carolina
​
Pennsylvania
​
Pennsylvania
​
South Dakota
​
Texas
​
Utah
​
Virginia
​
Virginia
​
Washington
​
Washington
​
Wisconsin
​
Wisconsin
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
​​
Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025 (NWF)
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025 (W)
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025 (W)
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
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Oct 19, 2025
Run the Rock Marathon, Half Marathon, 10k, 5k
​
TMC A-Mountain Half Marathon & 4 Miler
​
​
Mission Inn Run 1/2 Marathon, 10k, 5k
​
Cloverdale Vineyard Races Marathon, Half Marathon & 5k
​
Pasadena Trail Half Marathon, 10k, 5k
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The Ridgefield Road Fest 1/2 Marathon, 7 Miler & Iris Fund 5k
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Bishop Events DC Fall Classic Half Marathon & 5k
​
7 Bridges Marathon, 4 Bridges Half Marathon, 2 Bridges 5k
​
Endeavor Health Naperville Half Marathon, 10k, 5k
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IMT Des Moines Marathon, Half, Relay, 5k
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Mount Desert Island Marathon, Half Marathon & Relay
​
YuKanRun Around Cape Ann Half Marathon (3hr course time limit)
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Bay State Marathon & Half Marathon
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Happy Valley Half Marathon & 5k
​
U.M. Health West Grand Rapids Marathon, Half Marathon
​
Detroit Free Press Marathon, Half Marathon, 5k
​
Wild Duluth Races Harder 'N Heck Half Marathon & 10k
​
Hot Cider Hustle Rochester Half Marathon, 10k, 5k 2025 Registration
​
​
GO! St. Louis Halloween Race Half Marathon, 10k, 5k, 1mi
​
Just For the Helena of it Half Marathon, 10k, 5k
​
Delta Dental New England Half Marathon
​
Atlantic City Marathon, Half Marathon, 10k, 5k
​
Main Street Half Marathon and 4 Miler of Hunterdon
​
Duke City Marathon, Half Marathon, 20k, 10k, 5k & Relay
​
Suffolk County Marathon & Half Marathon
​
Bull City Race Fest Half Marathon, 5mi, 1miler
​
Nationwide Columbus Marathon & Half Marathon
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Columbia Gorge Marathon & Half Marathon
​
End of the Road Half Marathon & One Tunnel 4 Mile [day 2]
​
Reading Hospital Road Run Half Marathon & 5k 2025 Registration
​
7 Bridges Marathon, Half Marathon, 5k
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Champlain Islands Marathon and Half Marathon
​
Middlebury Maple Run Half Marathon & Relay
​
Kodiak
​
Tucson
​
Emerald Bay
​
Riverside
​
Cloverdale
​
Pasadena
​
Ridgefield
​
Washington
​
Crandall
​
Naperville
​
Des Moines
​
N.E. Harbor
​
Gloucester
​
Lowell
​
Northampton
​
Grand Rapids
​
Detroit
​
Duluth
​
Rochester
​
Biloxi
​
Eureka
​
Helena
​
Hopkinton
​
Atlantic City
​
Clinton
​
Albuquerque
​
Long Island
​
Durham
​
Columbus
​
Hood River
​
Waterfall
​
West Reading
​
Chattanooga
​
South Hero
​
Middlebury
​
Charlottesville
Alaska
​
Arizona
​
California
​
California
​
California
​
California
​
Connecticut
​
D.C.
​
Georgia
​
Illinois
​
Iowa
​
Maine
​
Massachusetts
​
Massachusetts
​
Massachusetts
​
Michigan
​
Michigan
​
Minnesota
​
Minnesota
​
Mississippi
​
Missouri
​
Montana
​
New Hampshire
​
New Jersey
​
New Jersey
​
New Mexico
​
New York
​
North Carolina
​
Ohio
​
Oregon
​
Pennsylvania
​
Pennsylvania
​
Tennessee
​
Vermont
​
Vermont
​
Virginia
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025 (T)
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025 (NWF)
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025 (NWF)
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
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Oct 25, 2025 (W)
​
Oct 25, 2025
​
Oct 25, 2025
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Oct 25, 2025
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Oct 25, 2025
​
Oct 25, 2025
​
Oct 26, 2024
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
​
Oct 25, 2025
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Oct 25, 2025
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Oct 26, 2024
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Oct 25, 2025
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Oct 25, 2025
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Oct 25, 2025
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Oct 25, 2025
Helping Hands Half Marathon & 5k
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USRR Haunted Half Marathon, 15/10/5k, 1mi at James D. Martin Park
​
USRR Haunted Half Marathon, 15/10/5k, 1mi at Blount Cultural Park
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Trail Run at Sly Park Marathon, Half Marathon, 50/10/5k, 17mi
​
BWR Monster Dash Half Marathon, 15k, 10k, 5k
​
Seashore Striders Seawitch 1/2 Marathon Classic
​
Bishop Events Semper Fi Half Marathon & 5k
​
Miami Beach Halloween Half Marathon
​
​
Galena River Fall Half Marathon & 8k
​
Renfro Rock N' Run Half Marathon & 5k
​
Michigan Monster Dash Half Marathon, 10k, 5k, 1k Kids
​
Mackinac Island Great Turtle Trail Run Half Marathon (3.5hr time limit)
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​Running Fit The Legend Half Marathon, 5mile
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Minneapolis Halloween Half Marathon
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Bear Creek Run Half Marathon and Team Relay
​
​
Harding Halloween Half Marathon
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Dead Running Day of the Dead Series 50k, Marathon, Half, 10k, 5k (day1)
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Rockaway Half Marathon, Marathon 2025 Registration
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EVL Halloween Half Marathon & 5k
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Run Ocean Isle Beach 2025 Half Marathon, 10k, 5k, 1 mile
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Triple Lakes Trail Half Marathon, Marathon, 40mi, Relay
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Chippewa Creek Challenge Half Marathon
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Fall into Winter Half Marathon & 10k
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Friends of the Parks Half Marathon, 10k, 5k
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FivePine Lodge Happy Girls Run Half Marathon & 5k
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The Great Pumpkin Run Haunted Half Marathon, 10k, 5k
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Haunted Half Marathon & Relays
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Nashville Marathon, 1/2 Marathon, 5k
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Cleveland Half Marathon, 10k, 5k
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M2M Marathon, Half Marathon, 5k
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Stephenville Lions Spooktacular 5k, 10k & Half Marathon
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Runtastic Haunted Provo Half Marathon
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Field House Fall Half Marathon, 10k, 5k
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Chessie Trail Marathon, Half Marathon, 10k, 5k & 26.2 Relay
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Hot Cider Hustle - Shorewood Half Marathon & 5k 2025 Registration
Florence
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Gadsden
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Montgomery
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Pollock Pines
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Long Beach
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Lewes
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Washington
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Miami Beach
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Mableton
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Galena
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Mount Vernon
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Milford
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Mackinac Island
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Walker
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Minneapolis
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Columbia
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Franconia
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Morristown
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Las Cruces
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Rockaway Beach
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Ellicotville
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Ocean Isle Beach
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Greensboro
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Oak Grove
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Granville
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Coshocton
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Sisters
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Portland
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Jonesboro
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Nashville
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Cleveland
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Fort Stockton
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Stephenville
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Provo
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Shelburne
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Lexington
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Shorewood
Alabama
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Alabama
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Alabama
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California
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California
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Delaware
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D.C.
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Florida
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Georgia
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Illinois
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Kentucky
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Michigan
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Michigan
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Michigan
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Minnesota
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Missouri
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New Hampshire
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New Jersey
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New Mexico
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New York
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New York
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North Carolina
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North Carolina
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Ohio
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Ohio
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Ohio
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Oregon
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Oregon
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Tennessee
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Tennessee
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Tennessee
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Texas
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Texas
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Utah
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Vermont
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Virginia
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Wisconsin
Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025 (NWF)
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025 (NWF)
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Oct 26, 2025​
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
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Oct 26, 2025
Phoenix Wicked Marathon, Half Marathon, 10k, 5k
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Chandler #AZ48 Marathon & Half Marathon
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Malibu Moves 5k, Half Marathon & Kids Run
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BWR Monster Dash Yorba Linda Half Marathon, 15k, 10k, 5k
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Binational Race San Diego to Tijuana Half Marathon & 10k
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The Reservoir Run Half Marathon, 5k & Kids Fun Run
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Treasure Coast Halloween Half Marathon & Relay
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Florida Halloween Distance Classic Halfathon, 10k & 5k
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Disney Wine & Dine Half Marathon
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H3 Haunted Halloween Half Marathon & 5k
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Big Easy Half Marathon, 4mi, 1mi
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Newburyport Half Marathon (3 hour course time limit)
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Monson Memorial Classic Half Marathon & 5k
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Hot Cider Hustle Omaha Half Marathon, 10k, 5k 2025 Registration
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Dead Running Day of the Dead Series 50k, Marathon, Half, 10k, 5k (day 2)
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Sri Chinmoy Half Marathon Rockland Lake State Park
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Hairy Gorilla Half Marathon & Squirrely Six Mile
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Rhode Races Ocean State Marathon, Half Marathon, 5k
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Sadlers Creek Half Marathon & 5k
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Two Rivers Half Marathon and Ryan Bielke 5k
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B.C.S. Oktoberfest Half Marathon & 10k
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Scary Run Half Marathon, 10k, 5k
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Hot Cider Hustle Green Bay Half Marathon & 5k 2025 Registration
Phoenix
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Chandler
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Malibu
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Yorba Linda
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San Diego
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Weston
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Stuart
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St. Petersburg
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Orlando
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Chicago
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New Orleans
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Newburyport
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Monson
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Omaha
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Portsmouth
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Las Cruces
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Bridgeport
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Voorheesville
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Durham
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Narragansett
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Anderson
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New Braunfels
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Houston
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College Station
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Washougal
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Green Bay
Arizona
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Arizona
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California
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California
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California
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Connecticut
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Florida
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Florida
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Florida
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Illinois
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Louisiana
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Massachusetts
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Massachusetts
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Nebraska
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New Hampshire
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New Mexico
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New York
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New York
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North Carolina
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Rhode Island
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South Carolina
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Texas
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Texas
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Texas
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Washington
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Wisconsin
October Half Marathon Calendar event dates in dark grey are delinquent dates not updated by the race organizer yet. We strive to have dates 1 year out for October half marathons, but have no control of when they set, announce or update their dates.
October Half Marathons
The October Half Marathon Calendar is a complete simplistic listing of October half marathons 2025 in the USA. Currently the October half marathon schedule has 2025 half marathons, and October half marathons 2026 will be updated as they roll in from the 1/2 marathon race organizers. The October Half Marathon schedule identifies trail half marathons and walker friendly half marathons by a (T) symbol and a (W) symbol. The (T) means it is a TRUE trail half marathon (off road, switchbacks, etc) and a (W) means it is truly "official walker friendly" requiring the half marathon to allow a minimum of 18:32 mile pace, minimum 4 hours for participants to finish the 13.1 mile distance.
The October half marathon calendar features a complete listing of October half marathons in California, October half marathons in Texas, October half marathons in Colorado, October half marathons in New York, October half marathons in Utah, October half marathons in Illinois, October half marathons in Ohio, October half marathons in Florida, and all other 1/2 marathons in October across the USA.
A half marathon is 13.1 miles (or in kilometers is a 21k). We understand sometimes there will be a slight margin of error up or down when runners run or walk any race distance, however our calendar only is a listing for true half marathons that do all they can to measure their course as an official half marathon 13.1 mile / 21k distance. Races that are not 13.1 miles, we encourage not to call their race a 1/2 marathon to lessen confusion for runners & walkers looking to participate in a true 1/2 marathon distance. Some runners don't care, but you'd be surprised how many that do.