2026 Biggest ultra running races
By finisher count. North American races only.| Finishers | Event | Winner |
|---|---|---|
|
35
|
Coopers Rock 50 km and Half Marathon Trail RunApr 25 / 50 KM
/ Morgantown WV
|
|
|
35
|
Alaska Endurance Trail RunJun 05 / 24 Hours
/ Fairbanks AK
|
|
|
35
|
Glacial EskerApr 25 / 12 Hours
/ Albion IN
|
|
|
35
|
Rockin' KApr 04 / 50 KM
/ Ellsworth KS
|
|
|
34
|
Pemberton TrailJan 24 / 50 KM
/ Fountain Hills AZ
|
|
|
34
|
Trail Rail RunJun 20 / 50 KM
/ St. Regis MT
|
|
|
34
|
Turquoise Trail UltraFeb 21 / 52 KM
/ Cedar Crest NM
|
|
|
34
|
Barr LakeJun 13 / 50 KM
/ Brighton CO
|
|
|
34
|
CHICAGO 7-11 Hour Endurance RunMay 16 / 11 Hours
/ Willow Springs IL
|
|
|
34
|
Great Springs Trail Race - Canyon LakeJun 06 / 50 KM
/ Canyon Lake TX
|
|
|
34
|
World's Fair UltrasApr 18 / 24 Hours
/ Knoxville TN
|
|
|
34
|
Brazos LegendApr 04 / 50 KM
/ Waco TX
|
|
|
34
|
Chief Ladiga 100Apr 11 / 50 Miles
/ Jacksonville AL
|
|
|
34
|
OPSF5050Mar 21 / 50 KM
/ Spencer IN
|
|
|
34
|
Drummer Hill Trail RacesMay 23 / 50 KM
/ Keen NH
|
|
|
34
|
Hotfoot HamsterMay 30 / 24 Hours
/ Buckeye AZ
|
|
|
34
|
Monroe Cross TrailJan 24 / 50 Miles
/ DeBary FL
|
|
|
34
|
Samson's RevengeMay 23 / 55 KM
/ Estes Park CO
|
|
|
33
|
Earth Day Buckle ManiaApr 24 / 48 Hours
/ Abilene KS
|
|
|
33
|
Free Spirit 50KMay 16 / 50 KM
/ Leyden MA
|
|
|
33
|
Skunk Ape 100 Mile Endurance RunApr 25 / 100 Miles
/ Ocala FL
|
|
|
33
|
Rose Canyon UltraJun 06 / 50 Miles
/ Herriman UT
|
|
|
33
|
Keys UltrasMay 16 / 50 KM
/ Key West FL
|
|
|
33
|
FANS Ultra RacesJun 06 / 12 Hours
/ Minneapolis MN
|
|
|
33
|
Nanny GoatMay 23 / 100 Miles
/ Riverside CA
|
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