2023 Biggest ultra running races

By finisher count. North American races only.
Finishers Event Winner
157

Dirty German Endurance Fest

May 20 / 50 KM / Philadelphia PA
156

Strolling Jim™

May 06 / 40 Miles / Wartrace TN
156

The Georgia Death Race

Mar 25 / 74 Miles / Blairsville GA
148

Mendocino Coast 50k

Apr 22 / 50 KM / Mendocino CA
146

Jemez Mountain

May 20 / 50 KM / Los Alamos NM
144

Cabin Fever 50K

Feb 18 / 50 KM / New River Gorge National Park WV
142

Bryce Canyon

May 20 / 50 KM / Bryce Canyon UT
141

Massanutten Mountain Trails 100 Mile Run

May 20 / 100 Miles / Fort Valley VA
140

Behind the Rocks Ultra

Mar 25 / 50 KM / Moab UT
139

Orcas Island 50k

Jan 28 / 50 KM / Orcas Island WA
139

Quicksilver

May 13 / 50 KM / San Jose CA
139

Cocodona

May 01 / 250 Miles / Black Canyon City AZ
138

Outrun 24

Apr 29 / 24 Hours / Kirtland OH
137

Bull Run Run

Apr 15 / 50 Miles / Clifton VA
137

Tillamook Burn Trail Run

May 06 / 50 Miles / Timber OR
136

Badger Mountain Challenge

Mar 24 / 50 Miles / Richland WA
132

Quad Rock 50

May 06 / 50 Miles / Fort Collins CO
131

Bryce Canyon

May 20 / 50 Miles / Bryce Canyon UT
131

Copper Corridor

Feb 25 / 50 KM / Superior AZ
130

Leona Divide

Apr 22 / 50 KM / Lake Hughes CA
128

Bryce Canyon

May 20 / 60 KM / Bryce Canyon UT
128

Bandera

Jan 08 / 50 KM / Bandera TX
127

Canyons Endurance Runs

Apr 28 / 100 Miles / Auburn CA
124

Zion Ultras and Trail Half Marathon

Apr 15 / 100 Miles / Virgin UT
124

Stumptown Trail Runs

May 29 / 50 KM / Portland OR
124

Tiger Claw

May 13 / 50 KM / Issaquah WA
124

Umstead

Apr 01 / 100 Miles / Raleigh NC
121

Cruel Jewel

May 19 / 105.9 Miles / Blue Ridge GA
120

Holiday Lake

Feb 18 / 50 KM / Appomattox VA
119

Chippewa 50k

Apr 22 / 50 KM / New Auburn WI
117

Seneca Greenway Trail Marathon & 50K

Mar 11 / 50 KM / Gaithersburg MD
117

Rocky 50

Feb 11 / 50 Miles / Huntsville TX
116

Brazos Bend 50

Apr 01 / 50 KM / Needville TX
113

Umstead

Apr 01 / 50 Miles / Raleigh NC
111

Rocky Raccoon

Feb 04 / 100 KM / Huntsville TX
110

Long Haul 100

Jan 14 / 100 Miles / Wesley Chapel FL
110

Terrapin Mountain

Mar 18 / 50 KM / Big Island VA
110

Diablo Trails Challenge

Apr 08 / 50 KM / Walnut Creek CA
107

Tillamook Burn Trail Run

May 07 / 50 KM / Timber OR
106

Death by 5k Waterloo

May 20 / 50 KM / Waterloo IA
105

Cocodona

May 05 / 36 Miles / Black Canyon City AZ
104

3 Days of Syllamo

Mar 17 / 50 KM / Blanchard Springs AR
103

Badwater Cape Fear

Mar 18 / 51.4 Miles / Bald Head Island NC
102

Dirty German Endurance Fest

May 20 / 50 Miles / Philadelphia PA
101

Born to Run Ultra Marathons

Apr 15 / 30 Miles / Los Olivos CA
101

Ram Party

May 13 / 50 KM / Colorado Springs CO
99

Peak Blood Root Ultra

May 13 / 50 KM / Pittsfield VT
99

Silver State

May 20 / 50 KM / Reno NV
99

Sean O'Brien 100k/50M

Jan 28 / 50 KM / Malibu CA
99

Quicksilver

May 13 / 100 KM / San Jose CA

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