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3,914 marathons found for Half marathon. Keep the list broad first, then tighten the filters when a race looks realistic.





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Clarkston, Washington, United States
21SEP
ULTRA
Northwest Series - Day 3 - WA
Clarkston, Washington, United States
September 21, 2026 SEP
Oregon, United States
21SEP
ULTRA
Three Sisters Skyline
Oregon, United States
September 21, 2026 SEP
Texas, United States
22SEP
ULTRA
Cheers to Oktoberfest Race HOUSTON
Texas, United States
September 22, 2026 SEP
Japan
22SEP
21.1K
Ecomarathon Kanazawa
Japan
September 22, 2026 SEP
Ireland
22SEP
ULTRA
Glen of Aherlow Trail Run
Ireland
September 22, 2026 SEP
France
22SEP
21.1K
Les Foulées des 4 Portes
France
September 22, 2026 SEP
Clarkston, Washington, United States
22SEP
42.2K
Northwest Series - Day 4 - WA
Clarkston, Washington, United States
September 22, 2026 SEP
Lewiston, Idaho, United States
23SEP
ULTRA
Northwest Series - Day 5 - ID
Lewiston, Idaho, United States
September 23, 2026 SEP
France
23SEP
21.1K
Semi-Marathon Esprit d'Angély
France
September 23, 2026 SEP
Lewiston, Idaho, United States
24SEP
42.2K
Northwest Series - Day 6 - ID
Lewiston, Idaho, United States
September 24, 2026 SEP
Australia
24SEP
21.1K
Run The Maine
Australia
September 24, 2026 SEP
Italy
24SEP
21.1K
Trail dei Peloritani
Italy
September 24, 2026 SEP
Montour Falls, New York, United States
25SEP
42.2K
Finger Lakes Festival of Races (18M,13.1M,10K& 5K)
Montour Falls, New York, United States
September 25, 2026 SEP
France
25SEP
21.1K
Les Petits Pas Solidaires
France
September 25, 2026 SEP
Red Feather Lakes, Colorado, United States
25SEP
ULTRA
Red Feather Trail Jamboree
Red Feather Lakes, Colorado, United States
September 25, 2026 SEP
Malaysia
25SEP
21.1K
SP Half Marathon 2026
Malaysia
September 25, 2026 SEP
Arundel, Maine, United States
26SEP
42.2K
ACT Trail Fest
Arundel, Maine, United States
September 26, 2026 SEP
Big Sur, California, United States
26SEP
42.2K
Big Sur Trail Marathon, Half Marathon & 5 Mile
Big Sur, California, United States
September 26, 2026 SEP
Cortland, New York, United States
26SEP
21.1K
Leaf Peeper Half Marathon
Cortland, New York, United States
September 26, 2026 SEP
Rhinebeck, New York, United States
26SEP
21.1K
Rhinebeck Fall Foliage Half Marathon & 5K
Rhinebeck, New York, United States
September 26, 2026 SEP
Iron Mountain, Michigan, United States
26SEP
21.1K
Run Iron Mountain Half Marathon | 1OK | 5K | 1 Mile Fun Run
Iron Mountain, Michigan, United States
September 26, 2026 SEP
Canada
26SEP
21.1K
43rd Fredericton Fall Classic sponsored by Canadian Tire Fredericton North
Canada
September 26, 2026 SEP
Akron, Ohio, United States
26SEP
42.2K
Akron Marathon, Half Marathon & Team Relay
Akron, Ohio, United States
September 26, 2026 SEP
United Kingdom
26SEP
21.1K
Battersea Park 10K & Half Marathon September
United Kingdom
September 26, 2026 SEP

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