537 races
December 2026
3 races
January 2027
47 races
FRI
1
Doomsday 5K
St. Louis, MO, US
5 km
FRI
1
Just Survive 125
ULTRA
Hobe Sound, FL, US
200 km
FRI
1
The Next Loop Endurance Weekend | 01/01/27
ULTRA
St. Louis, MO, US
100 km50 km
SAT
2
Northwoods Marathon & Half Marathon - Duluth Winte
Duluth, MN, US
42 km21 km
SAT
2
Yankee Springs Winter Challenge
ULTRA
Middleville, MI, US
50 km25 km10 km5 km
SAT
2
Frozen Trash Panda
Huntsville, AL, US
21 km10 km
SAT
2
Hacienda Hills Trail Run - Winter
ULTRA
San Jose, CA, US
50 km42 km30 km21 km15 km10 km5 km
SAT
2
Croom Zoom
ULTRA
Brooksville, FL, US
50 km32 km16 km
SAT
2
Wild Azalea Trail Challenge
ULTRA
Alexandria, LA, US
81 km44 km21 km10 km
SAT
2
Ocean's 26.2 Relay Race and 6k run and Ruck
palm coast, FL, US
42 km6 km
SAT
2
WinterRock
ULTRA
Independence, KS, US
163 km101 km25 km12 km
SAT
2
Hard Times 100
ULTRA
Paris, TX, US
161 km100 km50 km
SUN
3
Snowy Owl 10 Mile
Williamsburg, VA, US
16 km
SUN
3
Willis River
ULTRA
Cumberland, VA, US
50 km35 km20 km
FRI
8
Frozen: H3
ULTRA
Bethera, SC, US
161 km81 km50 km25 km10 km
SAT
9
Night Owl Trail Marathon, Half, and 10K
Waynesville, OH, US
42 km21 km10 km
SAT
9
San Tan Scramble
ULTRA
Queen Creek, AZ, US
50 km26 km17 km9 km5 km
SAT
9
Frozen Assets Endurance Run
Springwater, NY, US
10 km
SAT
9
Angela Ivory Memorial Runs
ULTRA
Felton, DE, US
161 km50 km
SAT
9
Rabid Raccoon 25k
Chattanooga, TN, US
25 km
SAT
9
St. Croix 40 Winter Ultra
ULTRA
Hinckley, MN, US
64 km
SAT
9
Return to Lake Lure
ULTRA
Lake Lure, NC, US
50 km32 km16 km5 km
SAT
9
No Hands Trail Run
ULTRA
Auburn, CA, US
50 km35 km21 km8 km
SAT
9
The Great Scorpion Trail Run
ULTRA
Meridian, MS, US
50 km25 km13 km
SAT
9
Sandy Bottom 8-Hour Training Run
Hampton, VA, US
5 km
SAT
9
Perpetua FatAss
ULTRA
Yachats, OR, US
50 km30 km20 km15 km
SAT
9
South Mountains Marathons
Connelly Springs, NC, US
21 km
SAT
9
Frozen Gnome
ULTRA
Crystal Lake, IL, US
50 km10 km
SAT
9
Pullman Winter Ultras | January
ULTRA
Pullman, WA, US
50 km38 km25 km13 km
SAT
9
Frozen Devil's Head
Sedalia, CO, US
35 km
SUN
10
Pup-A-Go 5k Hike/Run
Phoenix, AZ, US
5 km
SUN
10
Atlanta Fat Ass 50K
ULTRA
Lithia Springs, GA, US
50 km25 km
TUE
12
Fierce Dragon (H9)
ULTRA
Blairsville, GA, US
322 km161 km100 km64 km40 km
SAT
16
8 Hours of Ode | Ode in the Snow
Holly, MI, US
10 km7 km5 km
SAT
16
Long Haul 100
ULTRA
Lakeland, FL, US
161 km
SAT
16
Ouachita Switchbacks
ULTRA
Big Cedar, OK, US
50 km25 km16 km
SAT
16
Mrs. McCormick's Ice House
Naples, NY, US
19 km13 km6 km
SAT
16
Huff N' Puff Trail Races
Jackson, GA, US
42 km21 km5 km
SAT
16
Swamp Stomper 50k/25k
ULTRA
Millington, TN, US
50 km25 km
SAT
16
The Shippey Endurance Runs
ULTRA
High Ridge, MO, US
161 km100 km64 km50 km32 km25 km
SAT
16
Coldwater Hundred
ULTRA
Goodyear, AZ, US
161 km100 km50 km32 km16 km8 km
SAT
16
Frozen Goat
Huntsville, AL, US
30 km15 km6 km
SAT
16
Tatonka 50k & 20mi
ULTRA
Waiteville, WV, US
50 km32 km
SAT
16
Helen Holiday Trail Race
ULTRA
Helen, GA, US
50 km25 km10 km
SAT
16
Snow Bull Trail Runs
Whitwell, TN, US
21 km
SUN
17
Alternate Chili Ten Mile Trail Run
Kansas City, KS, US
16 km
THU
21
Franklin Mountains TrailFest
ULTRA
El Paso, TX, US
100 km50 km30 km10 km5 km
Ultra marathons
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