2021 Biggest Ultrarunning Races

By finisher count. North American races only.
2021 2020 2019 2018
Finishers Event Winner
548

Zion 100

Apr 10 / 50 KM / Virgin UT
476

Rachel Carson Trail Challenge

Jun 19 / 34 Miles / Pittsburgh PA
403

Mountain Mist

Jan 23 / 50 KM / Huntsville AL
402

Silver Rush 50

Jul 11 / 50 Miles / Leadville CO
366

Golden Gate Dirty 30

Jun 12 / 50 KM / Black Hawk CO
364

Black Canyon Ultras

Feb 14 / 100 KM / Mayer AZ
325

Bryce Canyon 100

May 29 / 50 KM / Bryce Canyon UT
302

Promise Land

Apr 24 / 50 KM / Lynchburg VA
293

Bandera

Jan 09 / 100 KM / Bandera TX
265

Squaw Peak 50 Mile Trail Run

Jun 12 / 50 Miles / Provo UT
252

Rocky Raccoon

Feb 06 / 100 Miles / Huntsville TX
252

McDonald Forest

May 08 / 50 KM / Corvallis OR
247

The Canyons

Apr 24 / 100 KM / Foresthill CA
244

Bryce Canyon 100

May 29 / 60 KM / Bryce Canyon UT
243

Bryce Canyon 100

May 29 / 50 Miles / Bryce Canyon UT
237

Desert Rats Trail Running Festival

Apr 17 / 50 KM / Fruita CO
231

Bighorn

Jun 19 / 32 Miles / Dayton WY
227

Speedgoat

Jul 24 / 50 KM / Snowbird Resort UT
219

Dirty German Endurance Fest

May 08 / 50 KM / Philadelphia PA
218

Grayson Highlands 50k

May 01 / 50 KM / Mouth of Wilson VA
217

Zion 100

Apr 10 / 100 KM / Virgin UT
214

Hyner Trail Challenge

Apr 24 / 50 KM / Hyner PA
213

Dam Yeti 50

Jun 05 / 50 KM / Damascus VA
212

Mt Cheaha

Feb 27 / 50 KM / Delta AL
212

Behind the Rocks Ultra

Mar 27 / 50 KM / Moab UT
209

Black Canyon Ultras

Feb 13 / 60 KM / Mayer AZ
209

Smith Rock Ascent

May 15 / 50 KM / Terrebonne OR
208

Western States

Jun 26 / 100 Miles / Olympic Valley CA
201

Skyline 50K

Aug 01 / 50 KM / San Leandro CA
200

Crown King Scramble

Mar 27 / 50 KM / Phoenix AZ
199

Burning River

Jul 24 / 50 Miles / Willoughby Hills OH
197

Eastern Divide

Jun 19 / 50 KM / Pembroke VA
197

Black Mountain 50k

Jun 19 / 50 KM / San Diego CA
192

Terrapin Mountain

Mar 20 / 50 KM / Big Island VA
190

Sinister 7 Ultra

Jul 10 / 50 Miles / Crowsnest Pass AB
189

Wy'east Howl Trail Run

Jul 31 / 50 KM / Government Camp OR
186

Eagle Up Ultra

Jun 05 / 50 KM / Canal Fulton OH
185

Strolling Jim™

May 01 / 40 Miles / Wartrace TN
182

Siskiyou Out Back

Jul 10 / 50 KM / Ashland OR
180

Mohican

Jun 19 / 50 Miles / Loudonville OH
180

Wy'east Wonder

Jun 12 / 50 KM / Parkdale OR
180

Wy'east Wonder

Jun 12 / 50 Miles / Parkdale OR
179

San Juan Solstice

Jun 26 / 50 Miles / Lake City CO
178

Bighorn

Jun 19 / 100 Miles / Dayton WY
176

Backcountry Rise Trail Run

Jul 17 / 50 KM / Toutle WA
175

North Fork 50 Mile/50K

Jun 05 / 50 KM / Pine CO
170

Burning River

Jul 24 / 100 Miles / Willoughby Hills OH
168

Catamount Ultra

Jun 26 / 50 KM / Stowe VT
166

Quest for the Crest

May 15 / 50 KM / Burnsville NC
165

Badger Mountain Challenge

Mar 26 / 50 Miles / Richland WA

The results database is the property of UltraRunning Magazine. Use of the information and data is allowed and encouraged, however when it is shared or published attribution is required, as follows: Source UltraRunning Magazine (and if online, a link to UltraRunning.com).

Sangre de Cristo Ultras

  • Sep 25, 2021
  • Westcliffe, CO
50 KM 50 Miles 100 KM 100 Miles 200 Miles