September Half Marathons
Trail Half Marathons (T)
Official Walker Friendly Half Marathons in September
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
Sep 1, 2025 (W)
​
Sep 1, 2025 (NWF)
Sep 5, 2025 (W)
Parker
​
New Haven
Colorado
​
Connecticut
Old Forge
New York
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
Sep 6, 2025 (NWF)
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025 (T)
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
Sep 6, 2025 (NWF)
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025
​
Sep 6, 2025 (NWF)
​
Sep 6, 2025
​
Sep 6, 2025 (T)
Sep 6, 2025
​
Sep 6, 2025
USRR Medal Madness Half Marathon, 10k, 5k at Medal of Honor Park
​
​
International Peace Marathon & Half
​
Naperville Trails Half Marathon 2025 Registration
​
Fair on the Square Half Marathon, 5k, 1mi
​
Pony Express Half Marathon & 5k
​
Lock to Lock Marathon, Half Marathon, 10k
​
Run to the Rock Historic Plymouth Trio Half Marathon, 10k, 5k
​
Run Woodstock Trail 50mi, 50k, Marathon, Hippie Half Marathon
​
Dick Beardsley Races Half Marathon, 10k, 5k
​
NJ Trail Series FallApple 50k, 50mi, Marathon, Half, 10k
​
Old Forge Half Marathon & 5k day 2
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Carpe Diem - Carpe Noctem Half Marathon & 10k
​
​
​
Great Smoky Mountain Half Marathon
​
Lone Star Night Run Half Marathon, 10k, 5k
​
​
Runtastic Nebo Marathon, Half Marathon, 10k, 5k
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Charlotte Covered Bridges Half Marathon
​
​
Odyssey Trail Running Rampage 40mi, 26.2mi, 13.1mi, 6mi
Beat the Blerch Full & Half Marathon, 10k, 5k
​
Mobile
​
Fort Collins
​
Washington
Wheaton
​
Danville
​
Marysville
​
Williamsport
​
Plymouth
​
Pinckney
​
Detroit Lakes
​
Maplewood
​
Old Forge
​
Pleasant Garden
​
Millersburg
​
Bird in Hand
​
Townsend
​
Weatherford
​
Cedar City
​
Payson
​
Shelburne
​
Manchester Center
​
Millsboro
Carnation
​
Elroy
Alabama
​
Colorado
​
D.C.
Illinois
​
Indiana
​
Kansas
​
Maryland
​
Massachusetts
​
Michigan
​
Minnesota
​
New Jersey
​
New York
​
North Carolina
​
Ohio
​
Pennsylvania
​
Tennessee
​
Texas
​
Utah
​
Utah
​
Vermont
​
Vermont
​
Virginia
Washington
​
Wisconsin
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
Sep 7, 2025 (W)
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Sep 7, 2025 (NWF)
​
Sep 7, 2025
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Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025
​
Sep 7, 2025 (NWF)
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Sep 7, 2025
​
Sep 7, 2025
Boston or Bust Marathon, Half Marathon
​
Surfers Point Marathon, Half Marathon, 10k, 5k
​
Delta Harvest Fest 13.1mi, 10k, 5k
​
Abebe Bikila Day International Marathon & Half Marathon
​
Bishop Events 9-11 Memorial Half Marathon & 5k
​
Whiskey Run Atlanta Half Marathon, 10k, 5k
​
Clinton Half Marathon, 10k, 5k
​
​
Holland Haven Marathon & Half Marathon
​
​
Bozeman Marathon & Half Marathon
​
Midwest Omaha Half Marathon, 10k, 5k
​
​
Sackets Harbor Marathon & Half Marathon
​
​
The Hoot Half Marathon & 10 Trail Race
​
Twisted Pine Half Marathon (21k), 10k, 5k
​
UPMC Harrisbug Half 13.1 & 10k
​
Black Goose Half Marathon, 10k, 5k
​
Surftown Half Marathon, Relay & 5k
​
Peacehealth Appletree Marathon & Half Marathon
Huntsville
​
Ventura
​
Brentwood
​
Washington
​
Washington
​
Atlanta
​
Clinton
​
Auburn
​
Holland
​
Minneapolis
​
Bozeman
​
Omaha
​
Paramus
​
Sackets Harbor
​
Berea
​
Lewis Center
​
Newport
​
Harrisburg
​
East Providence
​
Westerly
​
Vancouver
Casper
Alabama
​
California
​
California
​
D.C.
​
D.C.
​
Georgia
​
Iowa
​
Maine
​
Michigan
​
Minnesota
​
Montana
​
Nebraska
​
New Jersey
​
New York
​
Ohio
​
Ohio
​
Oregon
​
Pennsylvania
​
Rhode Island
​
Rhode Island
​
Washington
​
Wyoming
Sep 13, 2025
​
Sep 13, 2025
Sep 13, 2025 (W)
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025 (NWF)
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 14, 2024
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 14, 2024
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025 (NWF)
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025 (W)
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025
​
Sep 13, 2025 (W)
USRR Medal Madness Half Marathon, 15/10/5k, 1mi at James D. Martin Park
​
South Hills Single Track Trail Run 13.1mi, 10k, 5k
​
All-Out Fallfest Marathon, Half Marathon, 10k, 5k, 1 Mile
​
Ned * Ned TrailFest Half Marathon, 10k, 5k
​
Snow Mountain Ranch Trail Running Festival Half, 50/33/10/5k
​
​
Priest Lake Marathon, Half Marathon, 10k, 5k
​
​
MVRA Dubuque Benefit Classic Half Marathon, 5k
​
Wabash Trace Nature Trail Marathon, Half Marathon, Relay
​
Race to the Center Half Marathon
​
Patriots Run Marathon, Half Marathon, 5k
​
Bar Harbor Bank & Trust Half Marathon, 5k
​
​
North Shore Run St. Luke's Wheels Off Half Marathon & Tunnel 10k
​
Elm Creek Park Reserve Half Marathon & 10k
​
Rockin' Rockwoods 1/2 Marathon & 53k Trail Run
​
Autumn River Run Half Marathon, 10k, 5k
​
Shawangunk Ridge Trail Run/Hike 1/2 Marathon, 30mi, 50mi, 70mi
​
Ontario Summit Trail Races Marathon & Half Marathon
​
The Triboro Adventure Tour Half Marathon 2025 Registration
​
​
Scheels BurliMOT Half Marathon, 5k & Relay
​
Race for Victory Half Marathon & 5k
​
Beaverton Half Marathon, 10k, 5k
​
Vacation Races Mount Rushmore Half Marathon
​
Alamo Beer Series Battle of Salado Creek 13.1, 10mi, 5mi, 5k
​
Tejas Trails Mellow 26.2mi, 13.1mi, 10k, 5k
​
Summer Meltdown Half Marathon, Quarter Marathon & 5k San Antonio
​
Revel Big Cottonwood Marathon & Half Marathon
​
VHTRC Women's Half Marathon Trail Run
Bishop Events Shenandoah Half Marathon, 10k, 5k​
​
Blackwater Canyon Half Marathon
​
DoLittle Marathon, 1/2 Marathon, 5k
​
​
Buffalo Bill Cody Races Half Marathon & 10k 2025 Registration
Gadsden
​
San Jose
Westminster
​
Nederland
​
Granby
​
Milford
​
Priest Lake
​
Fishers
​
Dubuque
​
Shenandoa
​
Smith Center
​
Overland Park
​
Bar Harbor
​
Faribault
​
Duluth
​
Maple Grove
​
Wildwood
​
North Platte
​
Rosendale
​
Naples
​
Astoria
​
Queens
​
Minot
​
Tulsa
​
Beaverton
​
Keystone
​
Fredericksburg
​
Spicewood
​
San Antonio
​
Cottonwood Heights
​
Fairfax
​
Bentonville
​
Parsons
​
Waukesha
​
Onalaska
​
Cody
Alabama
​
California
Colorado
​
Colorado
​
Colorado
​
Connecticut
​
Idaho
​
Indiana
​
Iowa
​
Iowa
​
Kansas
​
Kansas
​
Maine
​
Minnesota
​
Minnesota
​
Minnesota
​
Missouri
​
Nebraska
​
New York
​
New York
​
New York
​
New York
​
North Dakota
​
Oklahoma
​
Oregon
​
South Dakota
​
Texas
​
Texas
​
Texas
​
Utah
​
Virginia
​
Virginia
​
West Virginia
​
Wisconsin
​
Wisconsin
​
Wyoming
Sep 14, 2025
​
Sep 14, 2025
​
Sep 14, 2025
​
Sep 14, 2025
​
Sep 14, 2025 (NWF)
​
Sep 14, 2025
​
Sep 14, 2025
​
Sep 15, 2024
​
Sep 14, 2025
​
Sep 14, 2025
​
Sep 14, 2025
​
Sep 14, 2025 (T)
​
Sep 14, 2025
​
Sep 14, 2025
Sep 14, 2025
Sep 14, 2025
Fall Equinox Marathon, Half Marathon & 5 Mile
​
DC Half Race the District Half Marathon & Half Relay
​
Hub City 20mi, Half Marathon & 5k
​
Annapolis Run for the Lighthouse Half Marathon & 5k
​
Yukanrun Half Marathon by the Sea (3 hour course time limit)
​
Tree House Brewing Company Half Marathon
​
Ironman 70.3 Michigan Triathlon (has an official 13.1 mile run finish)
​
Kismet Cliff Run Beast of the East Half Marathon
​
Chips & Salsa Half Marathon 2025 Registration
​
​
Boring Marathon, Half Boring Half Marathon & 8k
​
​
Summer Meltdown Half Marathon Houston & Quarter Marathon, 5k
​
Bishop Events Valley View Hard Cider Challenge 5k, 10k, Half Marathon
​
Skagit Flats Marathon & 1/2 Marathon
​
Fort Collins
​
Washington
​
Crown Point
​
Annapolis
​
Manchester BTS
​
Deerfield
​
Frankfort
​
Conway
​
Albuquerque
​
Troy
​
Boring
​
Mifflinburg
​
Sugarland
​
Delaplane
​
Burlington
​
Belington
Colorado
​
D.C.
​
Indiana
​
Maryland
​
Massachusetts
​
Massachusetts
​
Michigan
​
New Hampshire
​
New Mexico
​
Ohio
​
Oregon
​
Pennsylvania
​
Texas
​
Virginia
​
Washington
​
West Virginia
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 21, 2024
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025 (NWF)
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 23, 2023 (NWF)
​
Sep 20, 2025 (W)
​
Sep 20, 2025
​
Sep 21, 2024
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Sep 20, 2025
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Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
​
Sep 20, 2025
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 21, 2025
​
Sep 22, 2024
​
Sep 21, 2025
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Sep 21, 2025
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Sep 21, 2025
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Sep 21, 2025
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Sep 21, 2025
​
Sep 21, 2025 (NWF)
​
Sep 21, 2025
​
Sep 21, 2025
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Sep 21, 2025 (W)
​
Sep 21, 2025
Groom Creek Classic 1/2 Marathon, 10k, 5k
​
Rocky Ridge Half Marathon, 10k, 5
​
Beulah Challenge Half Marathon, 10k, 5k Trail Run & Walk
​
Sunburn at Wormsloe Trail Half Marathon & 10k
​
Kau Coffee Half Marathon, 50k, 10k, 5k
​
​
KY History Half Marathon, 10k, 5k
​
The Lake Cumberland Half & 10k
​
Fall Trust Trail Fest Half Marathon, 10k, 5k
​
Susquehanna River Running Festival Half Marathon, 10k, 5k
​
​Bishop Events Carderock Charge Half Marathon, 10k, 5k
​
Run Iron Mountain Road and Trail Half Marathon, 10k, 5k & Relay
​
Ely Marathon, Boundary Waters Bank Half Marathon
​
Log Run Half Marathon, 10mi, 10k, 5k
​
Running From Squatch Half Marathon, 10k, 5k
​
Devil After Dark Marathon, 1/2 Marathon, 10k, 5k
​
Finger Lakes Half Marathon, 18miler, 10k, 5k
​
Bismarck Marathon, Half Marathon & Relay
​
US Airforce Marathon, Half Marathon, 10k, 5k
​
Grand Lake Marathon, Half Marathon, 10k, 5k
​
Mainly Marathons NW Series Marathon, Half, 50/10/5k Day 1
​
Pacific Northwest Marathon & Half Marathon
​
Tour des Fleurs Half Marathon & Quarter Marathon
​
Night Moves Marathon, Half Marathon, 10k, 5k (night event)
​
​
​
​
Trail Assail Procrastination Run 1/2 Marathon, 10k, 5k
​
Foundation23 Race to Raise Pinedale Half Marathon, 10k, 5k
​
Prescott
​
Jonesboro
​
San Ramon
​
Beulah
​
Savannah
​
Pahala
​
Jasper
​
Frankfort
​
Somerset
​
Arundel
​
Havre De Grace
​
Potomac
​
Iron Mountain
​
Ely
​
Stillwater
​
Springfield
​
Las Vegas
​
Montour Falls
​
Bismarck
​
Dayton
​
St. Mary's
​
Pendleton
​
Harrisburg
​
Dallas
​
San Fellipe
​
Draper
​
Anacortes
​
Seattle
​
Waukesha
​
Pinedale
​
Sheridan
Arizona
​
Arkansas
​
California
​
Colorado
​
Georgia
​
Hawaii
​
Indiana
​
Kentucky
​
Kentucky
​
Maine
​
Maryland
​
Maryland
​
Michigan
​
Minnesota
​
Minnesota
​
Missouri
​
Nevada
​
New York
​
North Dakota
​
Ohio
​
Ohio
​
Oregon
​
Oregon
​
Texas
​
Texas
​
Utah
​
Washington
​
Washington
​
Wisconsin
​
Wyoming
​
Wyoming
Bishop Events Autumn Georgetown Half Marathon & 5k
​
Fox Valley Marathon, Half Marathon, 20 mile (3hr cut off for half)
​
Midwest Greater Des Moines Half Marathon, 10k, 5k
​
​
​
Capital City River Run Half Marathon, 5k, Relay 2025 Registration
​
Detroit Women's Half Marathon, 10k, 5k
​
Utepils Trail Loppet Urban Trail Run Half Marathon, Half Half & 5k
​​
North Conway Half Marathon & 5k Run/Walk
​
​
Santa Fe International Half Marathon 2025 Registration
​
Rochester Marathon, Half Marathon & Relay
​
The Prospect Park Half Marathon 2025 Registration
​
Garmin Toledo Marathon, Half Marathon, 10k, 5k
​
Youngstown Marathon & Half Marathon
​
Mainly Marathons NW Series Marathon, Half, 50/10/5k Day 2
​
Boston Harvest Half Marathon, 10k, 5k
​
Sioux Falls Marathon, Half Marathon, 5k 2025 Registration
​
Whiskey Run Nashville Half Marathon, 10k, 5k
​
Bishop Events Race to End Veteran Suicide Half Marathon, 10k, 5k
​
Bellingham Bay Marathon, Half Marathon, 5k
​
Quilcene Oyster Half Marathon, 10k, 5k
​
​
Discover Whitewater Series Half Marathon & 5k
​
Washington
​
St. Charles
​
Des Moines
​
Rockville
​
Salem
​
Lansing
​
Detroit
​
Minneapolis
​
North Conway
​
Ocean City
​
Santa Fe
​
Rochester
​
Brooklyn
​
Toledo
​
Youngstown
​
Pendleton
​
Boston
​
Sioux Falls
​
Nashville
​
Fredericksburg
​
Bellingham
​
Quilcene
​
Seattle
​
Whitewater
​
Appleton
D.C.
​
Illinois
​
Iowa
​
Maryland
​
Massachusetts
​
Michigan
​
Michigan
​
Minnesota
​
New Hampshire
​
New Jersey
​
New Mexico
​
New York
​
New York
​
Ohio
​
Ohio
​
Oregon
​
Pennsylvania
​
South Dakota
​
Tennessee
​
Virginia
​
Washington
​
Washington
​
Washington
​
Wisconsin
​
Wisconsin
Sep 22, 2025
Sep 23, 2025
Clarkston
Clarkston
Washington
Washington
Sep 24, 2025
Lewiston
Idaho
Sep 25, 2025
Lewiston
Idaho
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025 (T)
​
Sep 27, 2025 (T)
​
Sep 28, 2024 (T)
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 28, 2024
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025 (W)
​
Sep 27, 2025
​
Sep 27, 2025 (NWF)
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
​
Sep 27, 2025
USRR Medal Madness Half Marathon, 15/10/5k, 1mi at James D. Martin Park
​
USRR Medal Madness Half Marathon, 15/10/5k, 1mi at Blount Cultural Park
​
Pacifica Summit Run Half Marathon & 5k
​
Big Sur Trail Marathon, Half Marathon & 5mi
​
Arnold Rim Trail Endurance Runs 37mi, 22mi, Half Marathon, 10k
​
"The Pioneer" Prairie Dog Half Marathon & 10k Westminster
​
​
​
Laufvergnugen Half Marathon, 10k, 5k
​
Belleville Main Street Marathon & Half Marathon
​
Moraine Hills Run for the Hills
​
YMCA Stonebridge Marathon, Half Marathon, 5k
​
Fort 4 Fitness Fall Festival Half Marathon, 10k, 4mi
​
Mill Race Marathon, Half Marathon, 5k
​
South Shore "3 Beach Minimum" Half Marathon
​
Gentex Corporation Park2Park Half Marathon & 5k
​
Big Woods Run Half Marathon, 10k, 5k
​
St. Joseph Missouri Marathon, Half Marathon, 10k, 5k & Relay
​
Swifty Fun Run Half Marathon, 10k, 5k, 1mi
​
Monument Marathon & Half Marathon
​
Northwell Health Great South Bay Run 13.1, 10k, 5k 2025 Registration
​
Hamptons Marathon & Half Marathon
​
Rockaway Beach Half Marathon & 5k (Tune Up) 2025 Registration
​
Oktoberfest Half Marathon & 5k
​
FirstEnergy Akron Marathon, Half Marathon & Team Relay
​
Rhode Races Jamestown Half Marathon
​
The Trailway Trail Race 26.2mi, 13.1mi, / 50/10/5k
​
Willie McCool Half Marathon, 10k, 5k
​
The Wasatch Half Marathon & 10k
​
Witch Run Half Marathon, 10k, 5k
​
Colbert Autumn Classic Half Marathon
​
YMCA Maple Leaf road Races Half Marathon
​
Jailbreak Marathon Half Marathon, 10k, 5k
​
Wonderful Water Run Half Marathon & 5k
​
Birkie Trail Run Festival Half Marathon, 8.5mi, 5k, Relays
​
Headbanger Half Marathon, 10k, 5k
​
Jackson Hole Marathon & Hole Half Marathon 2025 Registration
Gadsden
​
Montgomery
​
Pacifica
​
Big Sur
​
Arnold
​
Westminster
​
Aspen
​
Colebrook
​
Washington
​
Belleville
​
McHenry
​
Roscoe
​
Fort Wayne
​
Columbus
​
Hull
​
Holland
​
Faribault
​
St. Joseph
​
Kansas City
​
Gering
​
Bay Shore
​
Southhampton
​
Rockaway Beach
​
Asheville
​
Akron
​
Jamestown
​
Somerville
​
Lubbock
​
Midway
​
West Jordan
​
Spokane
​
LaCrosse
​
Wautoma
​
Stevens Point
​
Cable
​
Menomonee Falls
​
Jackson Hole
Alabama
​
Alabama
​
California
​
California
​
California
​
Colorado
​
Colorado
​
Connecticut
​
D.C.
​
Illinois
​
Illinois
​
Illinois
​
Indiana
​
Indiana
​
Massachusetts
​
Michigan
​
Minnesota
​
Missouri
​
Missouri
​
Nebraska
​
New York
​
New York
​
New York
​
North Carolina
​
Ohio
​
Rhode Island
​
Texas
​
Texas
​
Utah
​
Utah
​
Washington
​
Wisconsin
​
Wisconsin
​
Wisconsin
​
Wisconsin
​
Wisconsin
​
Wyoming
Sep 29, 2024
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025 (NWF)
​
Sep 28, 2025 (NWF)
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Sep 28, 2025
​
Kenai River Marathon, Half Marathon & Relay
​
Urban Cow Half Marathon, & Relay, 5k
​
Sevathon Half Marathon, 10k, 5k
​
Red Feather Trail Jamboree Half Marathon
​
Boulderthon Boulder Marathon, Half Marathon, 10k, 5k
​
​
TBK Bank Quad Cities Marathon, Half Marathon, 5k & Relay
​
Lifetime Chicago Half Marathon & 5k presented by HOKA
​
Lake Superior Shore Run Half Marathon, 5k
​
SHE RUNS Grand Rapids Half Marathon
​
City of Roses Half Marathon & 5k
​
Omaha Marathon, Half Marathon & 5k
​
Clarence Demar Marathon & Half Marathon
​
Adirondack Marathon, Half Marathon, Relay
​
Bluegrass Half Marathon, Relay & Kids Run
​
Dothane
​
Kenai
​
Sacramento
​​
Sunnyvale
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Red Feather Lakes
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Boulder
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Kailua
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Moline
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Chicago
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Marquette
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Grand Rapids
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Cape Giradeau
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Omaha
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Keene
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Schroon Lake
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Johnson City
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Blacksburg
Alabama
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Alaska
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California
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California
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Colorado
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Colorado
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Hawaii
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Illinois
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Illinois
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Michigan
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Michigan
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Missouri
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Nebraska
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New Hampshire
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New York
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Tennessee
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Virginia
Sep 29, 2025 (W)
Cheyenne
Wyoming
Sep 30, 2025 (W)
Sterling
Colorado
Sep 1, 2024 (T)
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Sep 1, 2024 (T)
Xterra World Championship Trail Marathon & Half Marathon
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Xterra Sugarloaf Marathon & Half Marathon Individual and Duo
Sugarloaf
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Sugarloaf
Maine
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Maine
September Half Marathon Calendar event dates in grey are delinquent dates not updated by the race organizer yet. We strive to have dates 1 year out for September half marathons, but have no control of when they set, announce or update their dates.
September Half Marathons
The September Half Marathon Calendar is a complete simplistic listing of September half marathons 2025 in the USA. Currently the September half marathon schedule has 2025 half marathons, and September half marathons 2026 will be updated as they roll in from the 1/2 marathon race organizers. The September 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 September half marathon calendar features a complete listing of September half marathons in California, September half marathons in Texas, September half marathons in Colorado, September half marathons in New York, September half marathons in Utah, September half marathons in Illinois, September half marathons in Ohio, September half marathons in Florida, and all other 1/2 marathons in September across the USA.