2020 Biggest Ultrarunning Races

By finisher count. North American races only.
2020 2019 2018 2017
Finishers Event Winner
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
129

Bigfoot 50k

Dec 12 / 50 KM / Lore City OH
128

Ghost Town Trail Challenge

Aug 22 / 50 KM / Blairsville PA
127

Moab 240

Oct 09 / 238 Miles / Moab UT
127

Sean O'Brien 100k/50M

Feb 08 / 100 KM / Malibu CA
126

Monument Valley Ultra

Feb 29 / 50 KM / Monument Valley UT
124

Virginia Run for Cancer

Nov 07 / 24 Hours / Hampton VA
123

Logan Peak Trail Run

Jun 20 / 28 Miles / Logan UT
121

Salem Lakeshore Frosty Fifty

Jan 04 / 50 KM / Winston-Salem NC
121

Georgia Thrill In The Hills 50K

Feb 15 / 50 KM / Winder GA
121

Seashore Nature Trail

Dec 19 / 50 KM / Virginia Beach VA
121

Hellgate

Dec 12 / 100 KM / Fincastle VA
120

Patapsco Valley 50K

Oct 24 / 50 KM / Baltimore MD
116

Pikes Peak Ultra

Jul 25 / 50 KM / Colorado Springs CO
115

Tecumseh Trail Challenge

Oct 24 / 50 KM / Nashville IN
113

Sylamore Trail

Feb 15 / 50 KM / Allison AR
110

Grayson Highlands 50k

Sep 20 / 50 KM / Mouth of Wilson VA
109

8 Hour Dream Endurance Race & Marathon

Jul 18 / 8 Hours / Indianapolis IN
108

Beaverhead Endurance Runs

Jul 11 / 100 KM / Salmon ID
108

Sean O'Brien 50k

Jan 11 / 50 KM / Malibu CA
107

Twisted Fork

Jun 27 / 64 KM / Park City UT
107

Louisville's Lovin' the Hills

Feb 08 / 50 KM / Louisville KY
106

TARCtic Frozen Yeti Trail Races

Feb 01 / 30 Hours / Westwood MA
105

Hashawha Hills

Feb 29 / 50 KM / Westminster MD
105

Pinhoti

Nov 07 / 100 Miles / Sylacauga AL
104

Kansas Fall Ultra Extravaganza

Oct 24 / 50 KM / Ottawa KS
103

Pumpkin Holler Hunnerd

Oct 17 / 50 KM / Tahlequah OK
103

Table Rock Ultras

Sep 19 / 50 KM / Morganton NC
103

Tsali Frosty Foot

Jan 18 / 50 KM / Almond NC
102

The Georgia Jewel

Sep 18 / 50 Miles / Dalton GA
102

South Mountains Marathons

Jan 11 / 50 KM / Connelly Springs NC
102

Psycho Wyco Run Toto Run

Feb 22 / 50 KM / Kansas City KS
101

The Barkley Fall Classic

Sep 19 / 50 KM / Wartburg TN
101

Long Haul 100

Jan 18 / 100 Miles / Wesley Chapel FL
101

The Nutcracker 12 hour Endurance Run

Dec 12 / 12 Hours / Dunn NC
100

Foothills Ultra (Conquer the Rock)

Mar 07 / 50 KM / Pickens SC
100

Tushars Mountain Runs

Aug 01 / 100 KM / Eagle Point Ski Resort UT
97

Canal Corridor 100 Mile Endurance Run

Jul 11 / 100 Miles / Akron OH
97

The Georgia Jewel

Sep 18 / 35 Miles / Dalton GA
97

Siuslaw Dunes Trail Run

Mar 07 / 50 KM / Florence OR
97

Mohican

Oct 31 / 50 Miles / Loudonville OH
96

Rogue Gorge

Oct 17 / 50 KM / Union Creek OR
96

Frozen Gnome

Jan 11 / 50 KM / Crystal Lake IL
96

The Derby

Nov 28 / 50 KM / Ellerbe NC
96

AZT Oracle Rumble

Jan 25 / 50 KM / Tucson AZ
96

Bryce 100

May 30 / 50 Miles / Bryce Canyon 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).

Lake Murray Endurance Run

  • Oct 23, 2021
  • Ardmore, OK
50 KM 100 KM 100 Miles