2017 Biggest Ultrarunning Races

By finisher count. North American races only.
2019 2018 2017 2016 2015
Finishers Event Winner
750

JFK

Nov 18 / 50 Miles / Boonsboro MD
700

Way Too Cool

Mar 04 / 50 KM / Cool CA
564

The North Face Endurance Challenge California

Nov 18 / 50 Miles / Marin CA
529

The North Face Endurance Challenge California

Nov 18 / 50 KM / Marin CA
431

Rachel Carson Trail Challenge

Jun 24 / 34 Miles / Pittsburgh PA
414

Chuckanut 50k

Mar 18 / 50 KM / Fairhaven WA
413

American River

Apr 01 / 50 Miles / Folsom CA
407

The North Face Endurance Challenge New York

May 13 / 50 KM / New York NY
391

The North Face Endurance Challenge Washington DC

Apr 29 / 50 KM / Washington DC DC
388

Ultra Trail de México

Oct 21 / 50 KM / Huasca de Ocampo
379

Run the Rut

Sep 03 / 50 KM / Big Sky MT
370

Blues Cruise

Oct 01 / 50 KM / Reading PA
357

NYRR NYC (Knickerbocker) 60K

Nov 18 / 60 KM / Manhattan NY
353

Golden Gate Dirty 30

Jun 03 / 50 KM / Black Hawk CO
346

Javelina Jundred

Oct 28 / 100 Miles / Fountain Hills AZ
346

Tunnel Hill 100

Nov 11 / 50 Miles / Vienna IL
342

Mountain Mist

Jan 28 / 50 KM / Huntsville AL
342

Cowtown Ultra

Feb 26 / 50 KM / Fort Worth TX
335

Silver Rush 50

Jul 09 / 50 Miles / Leadville CO
334

HAT Trail Run

Mar 25 / 50 KM / Havre de Grace MD
312

Squamish 50

Aug 20 / 50 KM / Squamish BC
303

Ultra Trail de México

Oct 21 / 100 KM / Huasca de Ocampo
303

Promise Land

Apr 29 / 50 KM / Lynchburg VA
301

Quad Dipsea

Nov 25 / 28.4 Miles / Mill Valley CA
300

Lake Sonoma

Apr 15 / 50 Miles / Healdsburg CA
297

Miwok

May 06 / 100 KM / Stinson Beach CA
297

Rio Del Lago

Nov 04 / 100 Miles / Granite Bay CA
289

Minnesota Voyageur

Jul 29 / 50 Miles / Carlton MN
287

Leadville Trail

Aug 19 / 100 Miles / Leadville CO
286

Bull Run Run

Apr 08 / 50 Miles / Clifton VA
280

Squamish 50

Aug 19 / 50 Miles / Squamish BC
280

Zion 100

Apr 07 / 50 KM / Virgin UT
277

Afton Trail

Jul 01 / 50 KM / Hastings MN
276

Squaw Peak 50 Mile Trail Run

Jun 03 / 50 Miles / Provo UT
270

Vermont 100

Jul 15 / 100 Miles / West Windsor VT
265

Ultra Caballo Blanco Copper Canyon Ultra

Mar 05 / 50 Miles / Urique
261

Yamacraw

Apr 08 / 50 KM / Stearns KY
261

Monument Valley

Mar 25 / 50 KM / Monument Valley AZ
260

Leona Divide

Apr 22 / 50 KM / Lake Hughes CA
259

Labor Pain

Sep 03 / 12 Hours / Reading PA
258

Eagle Up Ultra

Jun 24 / 24 Hours / Canal Fulton OH
256

Howl at the Moon 8 Hour

Aug 12 / 8 Hours / Danville IL
255

The North Face Endurance Challenge New York

May 13 / 50 Miles / New York NY
252

Salmon Falls 50K

Feb 25 / 50 KM / Pilot Hill CA
252

Stone Mill 50M

Nov 11 / 50 Miles / Montgomery Village MD
249

Grizzly Ultra

Oct 08 / 50 KM / Canmore AB
248

Black Canyon Trail

Feb 18 / 100 KM / Mayer AZ
248

Western States

Jun 24 / 100 Miles / Squaw Valley CA
245

Oregon Coast 50K / 30K

Oct 07 / 50 KM / Yachats OR
245

Patapsco Valley 50K

Oct 28 / 50 KM / Baltimore 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).

Frozen Gnome
  • Jan 11, 2020
  • Crystal Lake, IL
50 KM