2021 Biggest ultra running races
By finisher count. North American races only.| Finishers | Event | Winner |
|---|---|---|
|
4
|
tBunk Endurance ChallengeNov 12 / 150 Miles
/ LaGrange WI
|
|
|
4
|
Hamster Endurance RunsAug 14 / 6 Hours
/ Bellingham WA
|
|
|
4
|
Fire Fest UltraNov 14 / 100 KM
/ Logandale NV
|
|
|
4
|
Mosquito Hill Endurance Run and WalkOct 16 / 6 Hours
/ New London WI
|
|
|
4
|
Alaska Endurance Trail RunJun 04 / 6 Hours
/ Fairbanks AK
|
|
|
4
|
Wawayanda Wonderful 100Sep 25 / 100 KM
/ Hewitt NJ
|
|
|
4
|
The Montana 50KJun 12 / 100 KM
/ Seeley Lake MT
|
|
|
4
|
Whispering Grace 100Jul 10 / 100 Miles
/ Massillon OH
|
|
|
4
|
Glendo Lake Trail RaceSep 18 / 60 KM
/ Glendo WY
|
|
|
4
|
Sinawa 6 HourMay 15 / 6 Hours
/ Valders WI
|
|
|
4
|
The Great DivideAug 21 / 50 KM
/ Marysville MT
|
|
|
4
|
Nocterra Quitter's RunAug 08 / 6 Hours
/ Powell OH
|
|
|
4
|
Camp Anderson Endurance ShindigJul 10 / 6 Hours
/ Tyrone PA
|
|
|
4
|
The Bullshit Backyard UltraMar 20 / Backyard
/ Lenoxville PA
|
|
|
4
|
Duff Dog Backyard UltraOct 16 / Backyard
/ Luverne MN
|
|
|
4
|
Cal CrusherNov 06 / 12 Hours
/ Caledonia MI
|
|
|
4
|
Madison UltraJul 24 / 50 KM
/ Ennis MT
|
|
|
4
|
Sunset 6/12/24 Hour Endurance RunNov 27 / 12 Hours
/ Benton AR
|
|
|
4
|
Coastal Georgia Greenway 100 & 155Mar 05 / 100 Miles
/ st. Marys GA
|
|
|
4
|
Frozen: H3Jan 14 / 100 Miles
/ Bethera SC
|
|
|
4
|
Best Runner (Best of San Diego )Nov 20 / 100 Miles
/ San Diego CA
|
|
|
4
|
The Swamp Fox UltraNov 13 / 105 Miles
/ McClellanville SC
|
|
|
4
|
The Swamp Fox UltraNov 13 / 100 KM
/ McClellanville SC
|
|
|
4
|
The Swamp Fox UltraNov 13 / 50 Miles
/ McClellanville SC
|
|
|
4
|
Ray's RambleOct 23 / 24 Hours
/ Mount Perry OH
|
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