2024 Biggest ultra running races

By finisher count. North American races only.
Finishers Event Winner
80

In the Woods 30A 50K

Jan 27 / 50 KM / Santa Rosa Beach FL
79

Running the Rose

Jan 27 / 54 KM / Tyler TX
78

San Tan Scramble

Jan 06 / 50 KM / Queen Creek AZ
78

Ruck A Chuck 50k

Mar 16 / 50 KM / Foresthill CA
77

Big Bend

Jan 14 / 50 KM / Big Bend Ranch State Park TX
77

Brazos Bend 100

Jan 06 / 100 KM / Needville TX
76

Southern Tour Ultra

Jan 19 / 50 Miles / Wilmington NC
76

Phunt 50KM Trail Race

Jan 13 / 50 KM / Elkton MD
75

Squatchapple

Mar 09 / 33 Miles / West Orange NJ
75

HURT 100

Jan 13 / 100 Miles / Honolulu HI
74

Uwharrie Mountain Run

Feb 03 / 40 Miles / Ophir NC
73

Louisville's Lovin' the Hills

Feb 03 / 50 KM / Louisville KY
73

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

Jan 27 / 100 KM / Malibu CA
72

Conquer The Wall Endurance Challenge

Mar 08 / 47 Hours / Williamson WV
71

Mill Stone 50K

Feb 10 / 50 KM / Fort Mill SC
71

Frozen Gnome

Jan 06 / 50 KM / Crystal Lake IL
70

Holly Springs Race Against the Sun

Feb 24 / 12 Hours / Holly Springs NC
70

Mesquite Canyon

Mar 09 / 50 KM / Waddell AZ
68

Delano Park

Mar 02 / 12 Hours / Decatur AL
67

Foothills Ultra (Conquer the Rock)

Mar 02 / 50 KM / Pickens SC
67

Arches Ultra

Jan 27 / 50 Miles / Moab UT
66

NC Fat Ass 50k

Jan 27 / 50 KM / Ellerbee NC
66

Hagg Lake Mud Runs

Feb 17 / 50 KM / Forest Grove OR
66

Long Play (LP) Trail Race

Mar 02 / 33.3 Miles / Ridge Manor FL
65

Old West Trail Runs

Mar 16 / 50 KM / Julian CA
64

Old Pueblo

Mar 02 / 50 Miles / Sonoita AZ
64

Coldwater Rumble

Jan 20 / 60 KM / Goodyear AZ
61

Snow Bird Challenge

Jan 27 / 50 KM / Seneca SC
61

Mississippi Trail 50

Mar 02 / 50 KM / Laurel MS
60

AZT Oracle Rumble

Jan 27 / 50 KM / Tucson AZ
60

Gone Loco

Feb 11 / 33 Miles / Athens TN
59

Fort Yargo Thrill In The Hills

Feb 17 / 50 KM / Winder GA
59

Jackpot Ultra Running Festival

Feb 16 / 48 Hours / Las Vegas NV
59

Calico Trail Run

Jan 21 / 50 KM / Barstow CA
59

John Dick Memorial 50K

Feb 03 / 50 KM / Dousman WI
58

Monterey Ultra

Jan 27 / 50 Miles / Monterey CA
58

Frozen Flamingo 50K

Jan 07 / 50 KM / Queens NY
57

Siuslaw Dunes Trail Run

Mar 16 / 50 KM / Florence OR
57

Elephant Mountain

Feb 03 / 50 KM / Cave Creek AZ
56

Land between the Lakes

Mar 09 / 50 Miles / Grand Rivers KY
55

No Hands

Jan 06 / 50 KM / Auburn CA
55

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

Jan 27 / 50 Miles / Malibu CA
55

Farmdaze 24

Feb 24 / 24 Hours / Brooklet GA
55

MAD Backyard Ultra

Jan 13 / Backyard / East Ridge TN
55

Elizabeth's Furnace

Mar 09 / 50 KM / Fort Valley VA
55

Orcas Island 100

Feb 23 / 100 Miles / Orcas Island WA
54

Capitol Peak Mega Fat Ass

Jan 20 / 34 Miles / Olympia WA
54

Sycamore Canyon 100k & 50k

Feb 24 / 50 KM / San Diego CA
53

Tsali Ultra

Jan 13 / 50 KM / Almond NC
52

Atlanta Fat Ass 50K

Jan 07 / 50 KM / Lithia Springs GA

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