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, 2026 (W)
Oct 2, 2026 (W)
Belle Fourche
Bowman
South Dakota
North Dakota
Oct 4, 2025
​
Oct 3, 2026
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025 (NWF)
​
Oct 3, 2026
​
Oct 4, 2025 (NWF)
​
Oct 5, 2024
​
Oct 3, 2026
​
Oct 3, 2026
​
Oct 4, 2025 (T)
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 3, 2026 (W)
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 3, 2026
​
Oct 4, 2025
​
Oct 3, 2026
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025 (T)
​
Oct 4, 2025
​
Oct 3, 2026
​
Oct 3, 2026
​
Oct 4, 2025
​
Oct 3, 2026
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025
​
Oct 4, 2025
Flagstaff Marathon, Half Marathon, 10k (Offroad)
​
Colorado Springs Marathon & Half Marathon
​
​
The Race Half Marathon & 5k 2025 Registration
​
Rush Creek Stampede Half Marathon & 5k
​
Prairie State Marathon, Half Marathon, 5k 2025 Registration
​
​
Indy Half Marathon at Fort Ben
​
Little Apple Marathon, Half Marathon, 5k & Relay
​
​
Running Between the Vines Half Marathon 5mi & 5k
​
FLATS Trail Half Marathon Registration 2025
​
The Betsy Farris Memorial Run 1/2 Marathon, 10k, 5k
​
​
Mainly Marathons Center of the Nation Marathon, Half, 10/5k
​
The New Hampshire Marathon, Half Marathon, 10k
​
​
Bay Ridge Half Marathon 2025 Registration
​
Northwell Health Great South Bay Run 13.1, 10k, 5k 2026 Registration
​
The Mighty Niagara Half Marathon, Hospice Dash 5k 2025 Registration
​
Oktoberfest Half Marathon & 5k
​
Towpath Marathon, Half Marathon & 10k
​
Snack Town RunFest Half Marathon & 5k
​
Blair Regional YMCA October Half Marathon, 10k, 5k
​
Lowcountry Trail Half Marathon & 5k
​
True to the Brew Trail Run/Hike 13.1 Half Marathon
​
Arches Marathon, Half Marathon, 50k, 15k
​
​
​
Leavenworth Marathon & Half Marathon
​
Freedom's Run Marathon, Half Marathon, 10k, 5k
​
ACE New River Gorge-ous Trail Half Marathon 2025 Registration
​
S'more Fun Trail Run Half Marathon, 10k, 5k
​
Flagstaff
​
Colorado Springs
​
Washington
​
Atlanta
​
Cambridge
​
Long Grove
​
Evansville
​
Indianapolis
​
Manhattan
​
Slade
​
Jackson
​
Kirksville
​
Columbia
​
Waynesville
​
Baker
​
Bristol
​
LeRoy
​
Brooklyn
​
Bay Shore
​
Youngstown
​
Asheville
​
Cleveland
​
​Hanover
​
Hollidaysburg
​
Johns Island
​
Spartanburg
​
Moab
​
Harrisonburg
​
Farmville
​
Leavenworth
​
Shepherdstown
​
Minden
​
Baraboo
​
Green Bay
Arizona
​
Colorado
​
D.C.
​
Georgia
​
Idaho
​
Illinois
​
Indiana
​
Indiana
​
Kansas
​
Kentucky
​
Michigan
​
Missouri
​
Missouri
​
Missouri
​
Montana
​
New Hampshire
​
New York
​
New York
​
New York
​
New York
​
North Carolina
​
Ohio
​
Pennsylvania
​
Pennsylvania
​
South Carolina
​
South Carolina
​
Utah
​
Virginia
​
Virginia
​
Washington
​
West Virginia
​
West Virginia
​
Wisconsin
​
Wisconsin
Oct 5, 2025
​
Oct 4, 2026
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 4, 2026 (T)
​
Oct 4, 2026
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 4, 2026 (NWF)
​
Oct 5, 2025
​
Oct 4, 2026
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 4, 2026
​
Oct 4, 2026
​
Oct 5, 2025
​
Oct 5, 2025
​
Oct 4, 2026
​
Oct 4, 2026
​
Oct 4, 2026
​
Oct 5, 2025
​
Oct 4, 2026
​
Oct 4, 2026
​
Oct 5, 2025
​
Oct 4, 2026
BHM 26.2 Marathon, Half Marathon & Relay
​
Rock'n'Roll San Jose 1/2 Marathon
​
​
Kokanee Trail Runs 1/2 Marathon, 10k, 5k
​
Windsor Marathon, Half Marathon, 10k, 5k
​
New Belgium Half Marathon & 5k
​
The Bear Chase Trail Half Marathon, 10k, 5k
​
Garavel SoNo Half Marathon & 5k
​
Bishop Events DC Safe Half & 5k
​
Moscow Mountain Madness Half Marathon, 50k, 5mi
​
Maine Marathon, Half Marathon & Relay
​
Oktoberfest @Stony Creek 30k, Half Marathon, 10k, 5k
​
Medtronic Twin Cities Marathon & 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
​
Great Balloon Chase 1/2 Marathon & 5k
​
Wineglass Marathon & Half Marathon
​
Cary Greenways Tour Marathon, Half Marathon, 10k, 5k
​
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
​
Peroni Crawlin Crab Half Marathon & 5k
​
Pocahontas Trail Fest Marathon, Half Marathon & Relay
​
​
Birmingham
​
San Jose
​
Napa
​
Lake Tahoe
​
Windsor
​
Fort Collins
​
Morrison
​
Norwalk
​
Washington
​
Moscow
​
Portland
​
Utica
​
Minneapolis
​
Reno
​
Hampton
​
Sandy Hook
​
Jersey City
​
Seaside Heights
​
Albuqurque
​
Corning
​
Cary
​
Hillsboro
​
Mentor
​
Portland
​
Mitchell
​
Hill City
​
Waterbury
​
Hampton
​
Chesterfield
​
Poulsbo
Milwaukee
Alabama
​
California
​
California
​
California
​
Colorado
​
Colorado
​
Colorado
​
Connecticut
​
D.C.
​
Idaho
​
Maine
​
Michigan
​
Minnesota
​
Nevada
​
New Hampshire
​
New Jersey
​
New Jersey
​
New Jersey
​
New Mexico
​
New York
​
North Carolina
​
North Carolina
​
Ohio
​
Oregon
​
South Dakota
​
South Dakota
​
Vermont
​
Virginia
​
Virginia
​
Virginia
​
Wisconsin
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 10, 2026
​
Oct 11, 2025 (NWF)
​
Oct 10, 2026
​
Oct 10, 2026
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 10, 2026
​
Oct 10, 2026
​
Oct 10, 2026
​
Oct 11, 2025
​
Oct 10, 2026
​
Oct 11, 2025
​
Oct 10, 2026
​
Oct 10, 2026
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 10, 2026
​
Oct 11, 2025
​
Oct 11, 2025
​
Oct 10, 2026
​
Oct 10, 2026
​
Oct 10, 2026
​
Oct 11, 2025
​
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, Relay & Charity 5k
​
Bishop Events Kenilworth Half Marathon, 10k, 5k
​
Laufvergnugen 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
​
50 States Half Marathon Club Member Party & Awards Night
​
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
​
Water Tower 10k & Half Marathon
​
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
​
The Rogue Marathon, Half Marathon
​
Pocono Mountains Marathon, Half Marathon, 10k, 5k
​
Warren County YMCA SuperKwik Challenge Half Marathon, 5k
​
​
The Trailway Trail Race 26.2mi, 13.1mi, / 50/10/5k
​
Alamo Beer Challenge Battle of Hillotes Half Marathon, 10k, 5k
​
​
Citizens Run Against Cancer Half Marathon & 5k
​
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
​
LewisGale Salem Half Marathon & 8k
​
Whistlestop Marathon & Half Marathon
​
Zachariah's Acres Fall Run, Walk & Roll Half Marathon, 5k
​
Anchorage
​
Prescott
​
Booneville
​
Fort Collins
​
Breckenridge
​
Hartford
​
Washington
​
Washington
​
Jekyll
​
Hayden
​
Vernon Hills
​
Lansing
​
Cedar Rapids
​
Wichita
​
Falmouth
​
Lansing
​
Bemidji
​
Belle Plaine
​
Long Lake
​
Heranando
​
Tuckerton
​
Lake Placid
​
Cincinnati
​
Perrysville
​
Estacada
​
Medford
​
Greentown
​
Warren
​
Greenville
​
Somerville
​
Helotes
​
San Marcos
​
Victoria
​
Fort Worth
​
Sandy
​
St. Johnsbury
​
Fairfax Station
​
Salem
​
Ashland
​
Oconomowoc
​
Three Lakes
Alaska
​
Arizona
​
Arkansas
​
Colorado
​
Colorado
​
Connecticut
​
D.C.
​
D.C.
​
Georgia
​
Idaho
​
Illinois
​
Iowa
​
Iowa
​
Kansas
​
Massachusetts
​
Michigan
​
Minnesota
​
Minnesota
​
Minnesota
​
Mississippi
​
New Jersey
​
New York
​
Ohio
​
Ohio
​
Oregon
​
Oregon
​
Pennsylvania
​
Pennsylvania
​
South Carolina
​
Texas
​
Texas
​
Texas
​
Texas
​
Texas
​
Utah
​
Vermont
​
Virginia
​
Virginia
​
Wisconsin
​
Wisconsin
​
Wisconsin
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 11, 2026
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 12, 2025
​
Oct 11, 2026
​
Oct 12, 2025
Tucson Wicked Half Marathon, 10k, 5k
​
Clo Cow Half Marathon, 10k, 5k
​
Humboldt Redwoods Marathon & Half Marathon
​
Long Beach Marathon, Half Marathon
​
​
​
Southernmost Half Marathon & 10k
​
​
Hot Cider Hustle Fort Wayne Half Marathon, 10k, 5k
​
Prairie Fire Fall Marathon, Half Marathon, 5k
​
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)
​
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
​
Fall Foliage Half Marathon & 10k
​
​
Amica Newport Marathon and Half Marathon
​
Block Island Half Marathon 2025 Registration
​
​
Spokane Marathon, Half Marathon, 10k, Relay
​
Snohomish River Run Half Marathon, 10k
​
Tucson
​
Petaluma
​
Weott
​
Long Beach
​
Westminster
​
Pensacola
​
Key West
​
Athens
​
Fort Wayne
​
Wichita
​
Midway
​
Mandeville
​
Chestertown
​
Nantucket
​
Ann Arbor
​
Henderson
​
Albany
​
New Rochelle
​
Rhinebeck
​
Hendersonville
​
Newport
​
Block Island
​
Travelers Rest
​
Spokane
​
Everett
​
Circleville
Arizona​
​
California
​
California
​
California
​
Colorado
​
Florida
​
Florida
​
Georgia
​
Indiana
​
Kansas
​
Kentucky
​
Louisiana
​
Maryland
​
Massachusetts
​
Michigan
​
Nevada
​
New York
​
New York
​
New York
​
North Carolina
​
Rhode Island
​
Rhode Island
​
South Carolina
​
Washington
​
Washington
​
West Virginia
Oct 17, 2026
​
Oct 17, 2026
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025 (NWF)​
​
Oct 17, 2026
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 17, 2026
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025 (T)
​
Oct 18, 2025 (NWF)
​
Oct 18, 2025 (W)
​
Oct 18, 2025
​
Oct 17, 2026
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
Oct 18, 2025
​
SPACEROCK Trail Race Half Marathon, 10k, 5k
​
Mancos Cowboy Half Marathon, 5k & Kids Fun Run
​
Potomac River Run Half Marathon & Full Marathon
​
Idaho Running Day Marathon, Half Marathon, 10k, 5k
​
Country Soul Half Marathon, 10k, 5k
​
Purdue Boilermaker Half Marathon & 5k
​
​
​
Baltimore Running Festival Marathon, Half Marathon
​
Mankato Marathon & Half Marathon
​
Hot Cider Hustle Twin Cities Half Marathon, 5k
​
Garmin Kansas City Marathon, Half Marathon
​
Bohemian Alps Endurance Half Marathon & 50k Ultramarathon
​
Omahalf 3hr 15min course time limit
​
Twighlight Red Rock Half Marathon, 10k, 5k
​
Cannonball Marathon, Half Marathon, 10k, 5k
​
Mother Earth Brewing Ironclad Half Marathon
​
Root Rock Trail Race Half Marathon, 10k, 5k
​
​
End of the Road Half Marathon & One Tunnel 4 Mile [Day 1]
​
​
Sadlers Creek Half Marathon & 5k
​
Brookings Marathon, Half Marathon & Relay
​
Oktoberfest Trail Run Festival 5k, Half & Full Marathons, 50k
​
Top Run Energy City Half Marathon, 10k, 5k
​
Runtastic Haunted Emigration Half Marathon & 5k
​
Bishop Events Harvest Hills Half Marathon, 10k, 5k
​
Deep Hollow Half Marathon & 5k Trail Race 2025 Registration
​
​
​
Carnelian Bay
​
Agua Dulce
​
Mancos
​
Washington
​
Boise
​
Chicago
​
W. Lafayette
​
Hopkinsville
​
Louisville
​
Baltimore
​
Mankato
​
Bloomington
​
Kansas City
​
Brainard
​
Omaha
​
Reno
​
Greensboro
​
Kinston
​
Chapel Hill
​
Black Mountain
​
Waterfall
​
Cabot
​
Anderson
​
Brookings
​
Farmersville
​
Midland
​
Salt Lake City
​
Lorton
​
Lynchburg
​
Clarkston
​
Kirkland
​
Nashotah
California
​
California
​
Colorado
​
D.C.
​
Idaho
​
Illinois
​
Indiana
​
Kentucky
​
Kentucky
​
Maryland
​
Minnesota
​
Minnesota
​
Missouri
​
Nebraska
​
Nebraska
​
Nevada
​
North Carolina
​
North Carolina
​
North Carolina
​
North Carolina
​
Pennsylvania
​
Pennsylvania
​
South Carolina
​
South Dakota
​
Texas
​
Texas
​
Utah
​
Virginia
​
Virginia
​
Washington
​
Washington
​
Wisconsin
Oct 19, 2025
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 18, 2026
​​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 18, 2026
​
Oct 19, 2025
​
Oct 19, 2025 (NWF)
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 19, 2025 (W)
​
Oct 18, 2026
​
Oct 18, 2026
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 18, 2026
​
Oct 19, 2025 (W)
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 19, 2025
​
Oct 19, 2025
​
Oct 18, 2026
​
Oct 18, 2026
​
Oct 18, 2026
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
​
Jeepers Creepers Half Marathon
​
The Ridgefield Road Fest 1/2 Marathon, 7 Miler & Iris Fund 5k
​
Bishop Events DC Fall Classic Half Marathon & 5k
​
Wicked Triple Fun Run Half Marathon
​
Endeavor Health Naperville Half Marathon, 10k, 5k
​
IMT Des Moines Marathon, Half, Relay, 5k
​
Mount Desert Island Marathon, Half Marathon & Relay
​
YuKanRun Around Cape Ann Half Marathon (3hr course time limit)
​
Bay State Marathon & Half Marathon
​
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
​
​
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
​
Columbia Gorge Marathon & Half Marathon
​
Silver Falls Trail Half Marathon
​
End of the Road Half Marathon & One Tunnel 4 Mile [day 2]
​
Reading Hospital Road Run Half Marathon & 5k 2025 Registration
​
Bethlehem Running Festival Half Marathon, Relay, 10k, 5k
​
Champlain Islands Marathon and Half Marathon
​
Middlebury Maple Run Half Marathon & Relay
​
Bishop Events Fall For the Wounded Half Marathon, 10k, 5k
​
Charlottesville Fall Classic Half Marathon, 10k
​
Kodiak
​
Tucson
​
Emerald Bay
​
Riverside
​
Cloverdale
​
Pasadena
​
Valencia
​
Ridgefield
​
Washington
​
Ft Walton Beach
​
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
​
Silverton
​
Waterfall
​
West Reading
​
Bethlehem
​
South Hero
​
Middlebury
​
Triangle
​
Charlottesville
​
Vancouver
Alaska
​
Arizona
​
California
​
California
​
California
​
California
​
California
​
Connecticut
​
D.C.
​
Florida
​
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
​
Oregon
​
Pennsylvania
​
Pennsylvania
​
Pennsylvania
​
Vermont
​
Vermont
​
Virginia
​
Virginia
​
Washington
Oct 25, 2025 (W)
​
Oct 24, 2026
​
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
​
Oct 25, 2025 (NWF)
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Oct 25, 2025
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Oct 24, 2026
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Oct 25, 2025
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Oct 25, 2025 (NWF)
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Oct 25, 2025
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Oct 24, 2026
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Oct 25, 2025
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Oct 25, 2025
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Oct 24, 2026 (W)
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Oct 25, 2025
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Oct 25, 2025
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Oct 24, 2026
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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
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Oct 25, 2025
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Oct 25, 2025
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Oct 24, 2026
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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
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Oct 25, 2025
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Oct 25, 2025
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Oct 24, 2026
Helping Hands Half Marathon & 5k
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Creep 'N Crawl Half Marathon, 5k
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City of Colleges Half Marathon, 10k, 5k
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Trail Run at Sly Park Marathon, Half Marathon, 50/10/5k, 17mi
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BWR Monster Dash Half Marathon, 15k, 10k, 5k
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Seashore Striders Seawitch 1/2 Marathon Classic
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Bishop Events Semper Fi Half Marathon & 5k
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Miami Beach Halloween Half Marathon
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Boston Mini Marathon & Festival (13.1mi & 5k)
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Galena River Fall Half Marathon & 8k
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Renfro Rock N' Run Half Marathon & 5k
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Michigan Monster Dash Half Marathon, 10k, 5k, 1k Kids
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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
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Grand Canyon Trail Half Marathon & 5k
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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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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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Cleveland Half Marathon, 10k, 5k
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M2M Marathon, Half Marathon, 5k
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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
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Florence
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Little Rock
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Conway
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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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Boston
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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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Grand Canyon Vlg
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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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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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Provo
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Shelburne
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Lexington
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Shorewood
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Middleton
Alabama
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Arkansas
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Arkansas
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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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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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Nevada
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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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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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Utah
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Vermont
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Virginia
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Wisconsin
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Wisconsin
Oct 26, 2025
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Oct 25, 2026
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Oct 26, 2025
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Oct 26, 2025
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Oct 25, 2026
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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 25, 2026
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Oct 26, 2025
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Oct 25, 2026 (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 25, 2026
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Oct 26, 2025
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Oct 26, 2025
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Oct 25, 2026
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Oct 26, 2025
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Oct 26, 2025
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Oct 25, 2026
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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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​Fleet Feet Half Marathon presented by Hoka
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Rhode Races Ocean State Marathon, Half Marathon, 5k
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7 Bridges Marathon, 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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York
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Narragansett
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Chattanooga
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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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Pennsylvania
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Rhode Island
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Tennessee
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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 2026 in the USA. Currently the October half marathon schedule has 2026 half marathons, and October half marathons 2027 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.