2024 Biggest ultra running races

By finisher count. North American races only.
Finishers Event Winner
736

Black Canyon Ultras

Feb 10 / 100 KM / Mayer AZ
585

Chuckanut 50k

Mar 16 / 50 KM / Fairhaven WA
476

Avalon Benefit 50

Jan 06 / 50 KM / Avalon CA
390

Mountain Mist

Jan 27 / 50 KM / Huntsville AL
341

Antelope Canyon Ultras

Mar 09 / 55 KM / Page AZ
338

Black Canyon Ultras

Feb 11 / 60 KM / Mayer AZ
322

Avalon Benefit 50

Jan 06 / 50 Miles / Avalon CA
319

Bandera

Jan 13 / 100 KM / Bandera TX
311

Antelope Canyon Ultras

Mar 09 / 50 Miles / Page AZ
284

Crown King Scramble

Mar 23 / 50 KM / Phoenix AZ
253

Cabin Fever 50K

Feb 17 / 50 KM / New River Gorge National Park WV
250

Behind the Rocks Ultra

Mar 23 / 50 KM / Moab UT
244

Marin Ultra Challenge

Mar 09 / 50 KM / Sausalito CA
241

Arches Ultra

Jan 27 / 50 KM / Moab UT
241

Salmon Falls 50K

Feb 24 / 50 KM / Pilot Hill CA
216

Rocky Raccoon

Feb 03 / 100 Miles / Huntsville TX
212

The Algonquin 50K

Feb 10 / 50 KM / Pocomoke City MD
211

DARK ANCHOR

Jan 19 / 34 Hours / Savannah GA
199

Mt Cheaha

Feb 24 / 50 KM / Delta AL
198

The Big Alta

Feb 24 / 50 KM / Marinwood CA
197

HAT Trail Run

Mar 23 / 50 KM / Havre de Grace MD
169

Moab's Red Hot Ultra

Feb 24 / 55 KM / Moab UT
167

Rocky 50

Feb 10 / 50 KM / Huntsville TX
151

Bandera

Jan 14 / 50 KM / Bandera TX
150

FOURmidable

Feb 17 / 50 KM / Cool CA
141

Long Haul 100

Jan 13 / 100 Miles / Dade City FL
136

Holiday Lake

Feb 17 / 50 KM / Appomattox VA
134

Orcas Island 50k

Jan 27 / 50 KM / Orcas Island WA
134

San Diego 50 and Trail Runs

Jan 13 / 50 Miles / Escondido CA
134

Prickly Pear

Mar 10 / 50 KM / San Antonio TX
133

Marin Ultra Challenge

Mar 09 / 50 Miles / Sausalito CA
132

Badger Mountain Challenge

Mar 22 / 50 Miles / Richland WA
123

Rocky 50

Feb 10 / 50 Miles / Huntsville TX
119

StumpJump 50K

Mar 09 / 50 KM / Chattanooga TN
118

Mount Mitchell Heartbreaker

Mar 23 / 55 KM / Old Fort NC
113

Pistol Ultra Run

Mar 09 / 50 KM / Alcoa TN
112

Seneca Greenway Trail Marathon & 50K

Mar 09 / 50 KM / Gaithersburg MD
108

Forgotten Florida 100 Mile / 45 Mile / 15 Mile

Feb 17 / 50 Miles / Christmas FL
106

3 Days of Syllamo

Mar 15 / 50 KM / Blanchard Springs AR
105

Red Mountain

Mar 02 / 55 KM / St George UT
97

Mount Mitchell Heartbreaker

Mar 23 / 50 Miles / Old Fort NC
96

Hashawha Hills

Feb 24 / 50 KM / Westminster MD
96

Clearwater Running Festival

Jan 27 / 50 KM / Clearwater FL
95

Southern Tour Ultra

Jan 19 / 50 KM / Wilmington NC
93

Run with the Knights 24 Hr Ultra

Mar 23 / 24 Hours / Laurinburg NC
92

Brazos Bend 100

Jan 06 / 100 Miles / Needville TX
92

Terrapin Mountain

Mar 16 / 50 KM / Big Island VA
91

Rocky Raccoon

Feb 03 / 100 KM / Huntsville TX
91

Sean O'Brien 100k/50M/50k

Jan 27 / 50 KM / Malibu CA
91

Copper Corridor

Feb 24 / 50 KM / Superior AZ

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