2015 Biggest Ultrarunning Races

By finisher count. North American races only.
2019 2018 2017 2016 2015
Finishers Event Winner
978

Way Too Cool

Mar 07 / 50 KM / Cool CA
825

JFK

Nov 21 / 50 Miles / Boonsboro MD
631

American River

Apr 04 / 50 Miles / Folsom CA
501

The North Face Endurance Challenge California

Dec 05 / 50 KM / Marin CA
479

The North Face Endurance Challenge California

Dec 05 / 50 Miles / Marin CA
464

The North Face Endurance Challenge New York

May 03 / 50 KM / New York NY
396

The North Face Endurance Challenge Washington DC

Apr 18 / 50 KM / Washington DC DC
387

Golden Gate Dirty 30

May 30 / 50 KM / Black Hawk CO
378

The HUFF 50K Trail Run & Relay

Dec 19 / 50 KM / Albion IN
375

Rachel Carson Trail Challenge

Jun 20 / 34 Miles / Pittsburgh PA
355

Silver Rush 50

Jul 12 / 50 Miles / Leadville CO
351

NYRR NYC (Knickerbocker) 60K

Nov 14 / 60 KM / Manhattan NY
329

Chuckanut 50k

Mar 21 / 50 KM / Fairhaven WA
325

Mountain Mist

Jan 24 / 50 KM / Huntsville AL
315

Run the Rut

Sep 05 / 50 KM / Big Sky MT
313

Leadville Trail

Aug 22 / 100 Miles / Leadville CO
311

Promise Land

Apr 25 / 50 KM / Lynchburg VA
308

Miwok

May 02 / 100 KM / Stinson Beach CA
304

Speedgoat

Jul 26 / 50 KM / Snowbird Resort UT
302

The North Face Endurance Challenge New York

May 03 / 50 Miles / New York NY
296

Moab Red Hot 55k/33k

Feb 14 / 55 KM / Moab UT
291

Blues Cruise

Oct 04 / 50 KM / Reading PA
285

Ice Age Trail

May 09 / 50 Miles / La Grange WI
282

Bull Run Run

Apr 11 / 50 Miles / Clifton VA
282

Stone Mill 50M

Nov 14 / 50 Miles / Montgomery Village MD
282

Gorge Waterfalls 50K

Mar 29 / 50 KM / Cascade Locks OR
281

Javelina Jundred

Oct 31 / 100 Miles / Fountain Hills AZ
280

Quad Dipsea

Nov 28 / 28.4 Miles / Mill Valley CA
278

Lake Sonoma

Apr 11 / 50 Miles / Healdsburg CA
277

HAT Trail Run

Mar 21 / 50 KM / Havre de Grace MD
276

White River 50

Jul 25 / 50 Miles / Crystal Mountain WA
269

McDonald Forest

May 09 / 50 KM / Corvallis OR
265

Leona Divide

Apr 18 / 50 KM / Lake Hughes CA
259

Tunnel Hill 100

Nov 14 / 50 Miles / Vienna IL
254

Western States

Jun 27 / 100 Miles / Squaw Valley CA
250

Squamish 50

Aug 22 / 50 KM / Squamish BC
249

Rocky Raccoon

Jan 31 / 100 Miles / Huntsville TX
248

Howl at the Moon 8 Hour

Aug 08 / 8 Hours / Danville IL
248

Grizzly Ultra

Oct 10 / 50 KM / Canmore AB
247

Hinson Lake 24 Hour Ultra Classic

Sep 26 / 24 Hours / Rockingham NC
246

Born to Run Ultra Marathons

May 16 / 30 Miles / Los Olivos CA
243

Seashore Nature Trail

Dec 19 / 50 KM / Virginia Beach VA
241

Orcas Island 50k

Feb 07 / 50 KM / Orcas Island WA
239

The North Face Endurance Challenge Wisconsin

Oct 03 / 50 KM / Dousman WI
238

Bighorn

Jun 20 / 32 Miles / Dayton WY
236

Holiday Lake

Feb 14 / 50 KM / Appomattox VA
234

Bulldog 50K Ultra Run & 25K Trail Run

Aug 22 / 50 KM / Calabasas CA
233

Rio Del Lago

Nov 07 / 100 Miles / Granite Bay CA
231

The North Face Endurance Challenge Washington DC

Apr 18 / 50 Miles / Washington DC DC
231

Squaw Peak 50 Mile Trail Run

Jun 06 / 50 Miles / Provo UT

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