2020 Biggest Ultrarunning Races

By finisher count. North American races only.
2020 2019 2018 2017
Finishers Event Winner
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
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
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
96

Rogue Gorge

Oct 17 / 50 KM / Union Creek OR
96

Frozen Gnome

Jan 11 / 50 KM / Crystal Lake IL
96

AZT Oracle Rumble

Jan 25 / 50 KM / Tucson AZ
96

Bryce 100

May 30 / 50 Miles / Bryce Canyon UT
94

Arches Ultra

Jan 25 / 50 Miles / Moab UT
93

Boulder Field 100

Sep 12 / 50 KM / Jim Thorpe PA
93

Delano Park

Mar 07 / 12 Hours / Decatur AL
92

Big Hill Pond Walking Tall 50/25K

Oct 17 / 50 KM / Pocahontas TN
91

The Mid South (Land Run)

Mar 14 / 50 KM / Stillwater OK
91

El Vaquero Loco

Aug 01 / 50 KM / Afton WY
90

IMTUF 100 - Idaho Mountain Trail Ultra Festival

Sep 12 / 100 Miles / McCall ID
89

ICY-8

Feb 01 / 8 Hours / Lake Anna State Park VA
89

Phunt 50KM Trail Race

Jan 18 / 50 KM / Elkton MD
88

Chattanooga 50 mile & 100 mile

Mar 06 / 50 Miles / Rising Fawn GA
87

Bel Monte

Mar 14 / 50 Miles / Waynesboro VA
86

Naked Bavarian

Feb 29 / 40 Miles / Leesport PA
85

Bears Ears Ultra

Jun 27 / 50 KM / Monticello UT
85

Croom Zoom

Jan 04 / 50 KM / Brooksville FL
85

Capitol Peak Mega Fat Ass

Jan 18 / 34 Miles / Olympia WA
84

Bel Monte

Mar 14 / 50 KM / Waynesboro VA
83

Mesquite Canyon

Mar 07 / 50 KM / Waddell AZ
83

Burning River

Aug 22 / 100 Miles / Willoughby Hills OH
83

Harricana Ultra-Trail of Canada (UTHC)

Sep 12 / 125 KM / La Malbaie QC
83

The Ranch 50k

Feb 22 / 50 KM / Escondido CA
82

Mt Shasta Trail Runs

Jun 20 / 50 KM / Mt Shasta CA
82

Hagg Lake

Feb 15 / 50 KM / Forest Grove OR
82

Harbison 50K

Jan 04 / 50 KM / Columbia SC
81

Southern Tour Ultra

Jan 18 / 50 KM / Wilmington NC
80

Tuscazoar 100 and 50 miler

Sep 05 / 50 Miles / Dover OH
80

John Dick Memorial 50K

Feb 01 / 50 KM / Dousman WI

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).

Denali 135 & 100k
  • Jun 20, 2021
  • Paxson, AK
100 KM 135 Miles