50K trail ultra marathons
95 races
Salt Flats Endurance Runs
May 1-2, 2026 (Fri-Sat)
Wendover, Utah, United States
1.1 - 2.4
$287.32 - $457.61
Heartland 50
May 2, 2026 (Sat)
Cassoday, Kansas, United States
$173.63 - $196.31
Folsom Lake Trail Run
May 2, 2026 (Sat)
Folsom, California, United States
$147.27
Kanawha Trace Trail Run
May 2, 2026 (Sat)
Ona, West Virginia, United States
1.2
$98.12
Lost Creek Trail Runs
May 2, 2026 (Sat)
Trail, Oregon, United States
$136.62
Trails to the Sky 50K/10K
May 2, 2026 (Sat)
Glen Gardner, New Jersey, United States
1.2
$87.5
The Big Deal at Great Seal
May 2, 2026 (Sat)
Chillicothe, Ohio, United States
$119.58
Grayson Highlands
May 2-3, 2026 (Sat-Sun)
Mouth of Wilson, Virginia, United States
1.2 - 1.7
$165.23 - $165.84
Greenland Trail Races
May 2, 2026 (Sat)
Larkspur, Colorado, United States
1
McDonald Forest
May 2, 2026 (Sat)
Corvallis, Oregon, United States
1.3
$110
The Big 50
May 2, 2026 (Sat)
Pine Mountain, Kentucky, United States
Big a 50K
May 2, 2026 (Sat)
York, Maine, United States
TutHell 50K
May 2, 2026 (Sat)
Sioux Falls, South Dakota, United States
1.5
$0
Run Happy 50K
May 2, 2026 (Sat)
North Liberty, Indiana, United States
The Big 50
May 2, 2026 (Sat)
Pine Mountain, Georgia, United States
1.3
$76.87
Hacienda Hills Trail Run
May 2, 2026 (Sat)
San Jose, California, United States
$131
Spartan Trail - Bear Mountain Trail Challenge
May 2, 2026 (Sat)
Tomkins Cove, New York, United States
1.2
Maple Syrup Fun Run
May 2, 2026 (Sat)
Faribault, Minnesota, United States
The Blue 2 Blue Challenge
May 3, 2026 (Sun)
New Haven, Connecticut, United States
1.3
$98.12
Palm Bluff Trail Race and Ultra Marathon
May 3, 2026 (Sun)
Osteen, Florida, United States
Sisters Country
May 3, 2026 (Sun)
Sisters, Oregon, United States
1.1
$152.6
Mt. Si Trail Runs
May 3, 2026 (Sun)
Snoqualmie, Washington, United States
1 - 1.9
$98.12 - $103.43
Tiger Claw
May 8-9, 2026 (Fri-Sat)
Issaquah, Washington, United States
1.4
Tillamook Burn
May 8-10, 2026 (Fri-Sun)
Washington County, Oregon, United States
1.3 - 1.9
$157.92 - $424.17
Traverse City Trail Running Festival
May 8-9, 2026 (Fri-Sat)
Traverse City, Michigan, United States
Showing 1 - 25 of 95 events