2026 Biggest ultra running races
By finisher count. North American races only.| Finishers | Event | Winner |
|---|---|---|
|
101
|
Orcas Island 50kJun 06 / 50 KM
/ Orcas Island WA
|
|
|
101
|
Born to Run Ultra MarathonsMay 13 / 96 Hours
/ Los Olivos CA
|
|
|
101
|
Spartan Trail - Bear Mountain Trail ChallengeMay 02 / 50 KM
/ Tomkins Cove NY
|
|
|
101
|
Thumb Coast UltraApr 25 / 50 KM
/ Caseville MI
|
|
|
100
|
Monument Valley UltraFeb 28 / 50 KM
/ Monument Valley UT
|
|
|
100
|
PotawatomiApr 10 / 50 Miles
/ Pekin IL
|
|
|
100
|
Spokane River RunApr 19 / 50 KM
/ Spokane WA
|
|
|
100
|
Terrapin MountainMar 21 / 50 KM
/ Big Island VA
|
|
|
99
|
Kettle Moraine 100 Endurance RunsJun 13 / 50 KM
/ La Grange WI
|
|
|
99
|
Thumb Coast UltraApr 25 / 50 Miles
/ Caseville MI
|
|
|
99
|
Knobstone 50Apr 11 / 50 Miles
/ Borden IN
|
|
|
99
|
Clearwater Running FestivalJan 24 / 50 KM
/ Clearwater FL
|
|
|
99
|
Hashawha HillsFeb 28 / 50 KM
/ Westminster MD
|
|
|
99
|
Tillamook Burn Trail RunMay 16 / 50 Miles
/ Timber OR
|
|
|
99
|
Many On The GennyJun 20 / 45 Miles
/ Castile NY
|
|
|
98
|
Blackfoot UltraMay 30 / 50 KM
/ Edmonton AB
|
|
|
98
|
Ring the SpringsJun 20 / 50 KM
/ Colorado Springs CO
|
|
|
97
|
Lake Sonoma 100K & 50KApr 11 / 100 KM
/ Healdsburg CA
|
|
|
97
|
Leona DivideApr 18 / 50 KM
/ Lake Hughes CA
|
|
|
97
|
The Last One WonApr 25 / Backyard
/ Tecate Tijuana Baja California
|
|
|
97
|
Quest for the CrestMay 16 / 50 KM
/ Burnsville NC
|
|
|
97
|
River of No Return Endurance RunsJun 20 / 55 KM
/ Challis ID
|
|
|
97
|
Malibu Canyon Trail Races (SAMO 100 Mile)Jun 06 / 50 KM
/ Malibu CA
|
|
|
96
|
Sugar Badger 50/50 and halfMay 23 / 50 Miles
/ Belleville WI
|
|
|
96
|
Tiger ClawMay 08 / 50 KM
/ Issaquah WA
|
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