2026 Biggest ultra running races
By finisher count. North American races only.| Finishers | Event | Winner |
|---|---|---|
|
46
|
Sombrero Ultra Running Festival (SURF)Feb 13 / 48 Hours
/ middleburg FL
|
|
|
46
|
OutlandsApr 18 / 50 KM
/ Pilot Hill CA
|
|
|
46
|
Live Oak UltraJan 31 / 50 KM
/ Biloxi MS
|
|
|
46
|
Great Mansfield OutdoorsMay 30 / 50 KM
/ Mansfield ON
|
|
|
46
|
Fire Trail Running FestivalJun 13 / 50 KM
/ Spring Branch TX
|
|
|
46
|
SF Half DayJun 13 / 12 Hours
/ San Francisco CA
|
|
|
46
|
The Great Scorpion Trail RunJan 03 / 50 KM
/ Meridian MS
|
|
|
46
|
Conquer The Wall Endurance ChallengeMar 06 / 47 Hours
/ Williamson WV
|
|
|
46
|
Devil Makes Three (Killer Creek)May 16 / 50 KM
/ Waxhw NC
|
|
|
45
|
Tahoe 100kJun 14 / 100 KM
/ Lake Tahoe CA
|
|
|
45
|
Vernal Equinox 24-12-8 Hour RunMar 28 / 24 Hours
/ Batavia OH
|
|
|
45
|
Miccosukee Glades RunnerMar 14 / 50 KM
/ Miami FL
|
|
|
45
|
Trail Rail RunJun 20 / 50 Miles
/ St. Regis MT
|
|
|
45
|
Ouachita SwitchbacksJan 17 / 50 KM
/ Big Cedar OK
|
|
|
45
|
Moab's Red Hot UltraFeb 28 / 50 Miles
/ Moab UT
|
|
|
45
|
Old PuebloMar 07 / 50 Miles
/ Sonoita AZ
|
|
|
45
|
Trail MixMay 02 / 50 KM
/ Rockford MN
|
|
|
45
|
Loop The Hooch 50KApr 25 / 50 KM
/ Suwanee GA
|
|
|
44
|
Machete Trail Madness 100k & 50kApr 25 / 100 KM
/ Perris CA
|
|
|
44
|
This ain't yo Momma's 50k & Trail MarathonJan 25 / 50 KM
/ Middleburg FL
|
|
|
44
|
Serengeti Trail RacesApr 11 / 50 KM
/ Erda UT
|
|
|
44
|
Cedro PeakApr 18 / 50 KM
/ Tijeras NM
|
|
|
44
|
Jackpot Ultra Running FestivalFeb 21 / 12 Hours
/ Henderson NV
|
|
|
44
|
Freight Train 100k/50kMay 09 / 100 KM
/ Farmville VA
|
|
|
44
|
SurvivorfestJun 13 / 50 KM
/ Sherwood Park AB
|
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