2020 Biggest Ultrarunning Races

By finisher count. North American races only.
2020 2019 2018 2017
Finishers Event Winner
636

JFK

Nov 21 / 50 Miles / Boonsboro MD
571

Way Too Cool

Mar 07 / 50 KM / Cool CA
541

Black Canyon Trail

Feb 15 / 100 KM / Mayer AZ
357

Mountain Mist

Jan 25 / 50 KM / Huntsville AL
328

Bandera

Jan 11 / 100 KM / Bandera TX
314

Harricana Ultra-Trail of Canada (UTHC)

Sep 12 / 65 KM / La Malbaie QC
310

Salmon Falls 50K

Feb 29 / 50 KM / Pilot Hill CA
293

Antelope Canyon Ultras

Mar 14 / 55 KM / Page AZ
293

Avalon Benefit 50

Jan 11 / 50 KM / Avalon CA
276

Cowtown Ultra

Mar 01 / 50 KM / Fort Worth TX
267

Antelope Canyon Ultras

Mar 14 / 50 Miles / Page AZ
252

The Algonquin 50K

Feb 08 / 50 KM / Pocomoke City MD
252

Dead Horse Ultra

Nov 21 / 50 KM / Moab UT
250

Rocky Raccoon

Feb 01 / 100 Miles / Huntsville TX
248

Squaw Peak 50 Mile Trail Run

Jun 13 / 50 Miles / Provo UT
236

Black Canyon Trail

Feb 15 / 60 KM / Mayer AZ
224

Rock/Creek StumpJump 50K

Oct 03 / 50 KM / Chattanooga TN
222

Holiday Lake

Feb 15 / 50 KM / Appomattox VA
212

Never Summer 100K

Jul 25 / 100 KM / Gould CO
207

The Bear

Sep 25 / 100 Miles / Logan UT
207

Arches Ultra

Jan 25 / 50 KM / Moab UT
203

San Diego 50 and Trail Marathon

Jan 18 / 50 Miles / Escondido CA
203

Avalon Benefit 50

Jan 11 / 50 Miles / Avalon CA
200

FOURmidable

Feb 15 / 50 KM / Cool CA
192

Bandera

Jan 11 / 50 KM / Bandera TX
188

Wild Duluth Races

Oct 17 / 50 KM / Duluth MN
183

Moab Red Hot 55k/33k

Feb 15 / 55 KM / Moab UT
173

Georgia Sky to Summit

Nov 14 / 50 KM / Dillard GA
170

Mt Cheaha

Feb 29 / 50 KM / Delta AL
168

Rocky 50

Feb 08 / 50 Miles / Huntsville TX
167

Seneca Greenway Trail Marathon & 50K

Mar 07 / 50 KM / Gaithersburg MD
167

Stone Mill 50M

Nov 14 / 50 Miles / Montgomery Village MD
164

Orcas Island 50k

Feb 01 / 50 KM / Orcas Island WA
160

The North Face Grand Traverse Mountain Run

Sep 05 / 40 Miles / Crested Butte CO
160

Javelina Jundred

Oct 31 / 100 Miles / Fountain Hills AZ
159

The Pilot Mountain to Hanging Rock Ultra

Oct 10 / 50 KM / Pinnacle NC
158

Rocky 50

Feb 08 / 50 KM / Huntsville TX
156

Sean O'Brien 100k/50M

Feb 08 / 50 Miles / Malibu CA
152

Speedgoat

Jul 25 / 50 KM / Snowbird Resort UT
147

Beaverhead Endurance Runs

Jul 11 / 55 KM / Salmon ID
144

Burning River

Aug 22 / 50 Miles / Willoughby Hills OH
144

Yeti 100 Mile Endurance Run

Sep 25 / 100 Miles / Abingdon VA
139

Blue Ridge Ultra

Oct 10 / 50 KM / Blue Ridge GA
139

Rim to River 100

Nov 07 / 100 Miles / New River Gorge WV
138

Dead Horse Ultra

Nov 21 / 50 Miles / Moab UT
137

Harricana Ultra-Trail of Canada (UTHC)

Sep 12 / 50 Miles / La Malbaie QC
136

Three Sisters Skyline

Oct 04 / 50 KM / Sisters OR
131

Seneca Greenway Trail Marathon & 50K

Mar 07 / 28 Miles / Gaithersburg MD
131

No Business 100

Oct 16 / 100 Miles / Stearns KY
129

Rosaryville Veterans Day 50k

Nov 14 / 50 KM / Upper Marlboro MD

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).

Denali 135 & 100k

  • Jun 20, 2021
  • Paxson, AK
100 KM 135 Miles