Biggest Ultrarunning Races By finisher count. North American races only.

Date Event Distance Finishers Winner (M) Winner (F)
03/03 Way Too Cool
Cool CA
50 KM 601 Max King Ladia Albertson-Junkans
03/17 Chuckanut 50k
Fairhaven WA
50 KM 410 Cole Watson Keely Henninger
04/07 American River
Folsom CA
50 Miles 382 Zachary Ornelas Emily Hawgood
02/17 Black Canyon Trail
Mayer AZ
100 KM 353 Tim Freriks Ailsa Macdonald
03/24 HAT Trail Run
Havre de Grace MD
50 KM 337 Michael Bailey Dana Kolesar
02/25 Cowtown Ultra
Fort Worth TX
50 KM 326 Geofrey Terer Jenna Mutz
01/27 Mountain Mist
Huntsville AL
50 KM 317 David Riddle Jacqueline Merritt
04/14 Lake Sonoma
Healdsburg CA
50 Miles 292 Jim Walmsley Keely Henninger
01/06 Bandera
Bandera TX
100 KM 248 Mario Mendoza Camille Herron
02/24 Antelope Canyon Ultras
Page AZ
55 KM 235 Timothy Martin Luanne Park
04/07 Bull Run Run
Clifton VA
50 Miles 233 Paul Jacobs Anna Piskorska
04/07 Yamacraw
Stearns KY
50 KM 230 Thomas Morgan Justyna Mudy-Mader
03/10 Marin Ultra Challenge
Sausalito CA
50 KM 226 Jeff Mogavero Jenny Comiskey
02/24 Salmon Falls 50K
Pilot Hill CA
50 KM 220 Greg Bricca Jennifer Pfeifer
04/14 Leona Divide
Lake Hughes CA
50 KM 220 Timothy Reed Christine Shaw
01/06 Bandera
Bandera TX
50 KM 219 Ford Smith Kelly Swanson
02/24 Antelope Canyon Ultras
Page AZ
50 Miles 216 Michael John Mcknight Alexandra Garner
02/17 Moab Red Hot 55k/33k
Moab UT
55 KM 211 Anthony Costales Cat Bradley
02/03 Rocky Raccoon
Huntsville TX
100 Miles 201 Ronnie Delzer Sabrina Little
03/24 Crown King Scramble
Phoenix AZ
50 KM 187 Zach Bitter Kelly Wolf
02/03 Sean O'Brien 50M/50K/26.2
Malibu CA
50 KM 182 Kris Brown Rebecca Murillo
04/21 Yakima Skyline Rim
Yakima WA
50 KM 182 Mike Wolfe Kaytlyn Gerbin
01/20 Avalon Benefit 50
Avalon CA
50 KM 180 Oswaldo Hurtado Kasia Gondek
02/03 Orcas Island 50k
Orcas Island WA
50 KM 180 Masazumi Fujioka Stephanie Gundel
02/24 Mt Cheaha
Delta AL
50 KM 178 William Ansick Emily Ansick
01/27 Arches Ultra
Moab UT
50 KM 170 Elijah Flenner Wendy Stalnaker
03/17 The Pistol Ultra Run
Alcoa TN
50 KM 169 Brian Steinberg Jennifer Boling
03/31 The Georgia Death Race
Blairsville GA
68 Miles 168 Andrew Miller Aliza Lapierre
03/24 Terrapin Mountain
Big Island VA
50 KM 168 Nicholas Dipirro Amy Rusiecki
02/17 Holiday Lake
Appomattox VA
50 KM 166 Mike Fox Amy Rusiecki
03/10 Marin Ultra Challenge
Sausalito CA
50 Miles 166 Lon Freeman Megan Arauzo
02/10 Rocky 50
Huntsville TX
50 KM 163 Matt Smith Caroline Cotsakis
03/24 Behind the Rocks Ultra
Moab UT
50 KM 162 Bobby Peavey Taylor Nowlin
04/14 Diez Vista
Port Moody BC
50 KM 159 Ed Mccarthy Claire Daniels
02/24 Mt Mitchell Challenge and Black Mountain Marathon
Black Mountain NC
40 Miles 158 Morgan Elliott Aliza Lapierre
01/20 Avalon Benefit 50
Avalon CA
50 Miles 158 Austin Horn Asuka Eguchi
04/07 Brazos Bend 50
Needville TX
50 KM 156 Calum Neff Laura Huning
02/17 FOURmidable
Cool CA
50 KM 149 Robert Ressl-Moyer Stephanie Howe Violett
01/06 Salem Lakeshore Frosty Fifty
Winston-Salem NC
50 KM 144 Stephen Spada Colleen Lafrance
04/21 24 Hours of Palmer Lake Fun Run
Palmer Lake CO
24 Hours 142 Pete Kostelnick Jane Murawski
02/10 The Algonquin 50K
Pocomoke City MD
50 KM 141 Aaron Ellison MarĂ­a Miller
01/13 San Diego 50 and Trail Marathon
Escondido CA
46.5 Miles 141 Dan Kelley Sally McRae
04/14 Diablo Trails Challenge
Walnut Creek CA
50 KM 138 Samuel Nickelsen Sharon Yamauchi
04/21 Mendocino Coast 50k
Mendocino CA
50 KM 137 Alexander Kramer Jenn Humberstone
02/10 Cloudland Canyon
Rising Fawn GA
50 KM 136 Aaron Saft Laura Brock
02/03 Sean O'Brien 50M/50K/26.2
Malibu CA
100 KM 134 Florian Neuschwander Courtney Dauwalter
04/14 Desert Rats Trail Running Festival
Fruita CO
50 KM 132 Jason Schlarb Caitlin Snow
03/24 Antelope Island Buffalo Run
Syracuse UT
50 KM 130 Gary Messina Katherine Pagano
02/17 Black Canyon Trail
Mayer AZ
60 KM 129 Daniel Nix Sarah Bard
03/17 Ruck A Chuck 50k
Foresthill CA
50 KM 128 Kris Brown Amy Phillips

Recent Results