Ultramarathons in United States 2026 18 events
Anything beyond the marathon — 80 kilometres and up. Browse upcoming events in United States.
Upcoming races
Running
2025 New Year Challenge - Year of the Snake 2.025 Mile 20.25 Mile 202.5 MILE - Now Only $12!
◎ Mcdonough, USA▤ Oct 10 - Dec 30, 2026
3.3 km
RunningIn 2 days
Rio Del Lago 100 Mile + 50K Endurance Runs
◎ Granite Bay, USA▤ Nov 7, 2026
160.9 km
RunningIn 9 days
The Next Loop: 50 Mile Challenge, Tyler, TX - Nov
◎ Tyler, USA▤ Nov 14, 2026
80.5 km
RunningIn 2 weeks
64th Annual JFK 50 Mile presented by Altra
◎ Boonsboro, USA▤ Nov 21, 2026
80.5 km
RunningIn 2 weeks
JFK 50 Mile
◎ Washington County, USA▤ Nov 21, 2026
80.5 km
RunningIn 2 weeks
310K Run/walk powered by Leslie Cohen Law
◎ Santa Monica, USA▤ Nov 22, 2026
310 km
RunningIn 3 weeks
Colorado River Run 100 Mile • 50 Mile • 50K • Marathon • Half Marathon • 10K • 5K
◎ Marble Falls, USA▤ Nov 27-28, 2026
160.9 km
RunningIn 4 weeks
Anza Borrego Cuyamaca 50 Mile Run
◎ Julian, USA▤ Dec 5, 2026
80.5 km
RunningIn 4 weeks
Cloudland Canyon 50 Mile/50K/25K/5 MIle
◎ Rising Fawn, USA▤ Dec 5-6, 2026
80.5 km
RunningIn 9 weeks
Avalon Benefit 50 Mile/50K Run
◎ Avalon, USA▤ Jan 9, 2027
80.5 km
RunningIn 2 months
H.U.R.T. 100 Mile Endurance Run
◎ O'ahu, USA▤ Jan 16, 2027
160.9 km
RunningIn 4 months
Tombstone 30k/50k/50 mile
◎ Valparaiso, USA▤ Mar 13, 2027
30 km
RunningIn 4 months
The Bootlegger 100 Mile Trail Race
◎ Flovilla, USA▤ Mar 20, 2027
160.9 km
RunningIn 5 months
Umstead 100 Mile Endurance Run
◎ Raleigh, USA▤ Apr 3, 2027
160.9 km
RunningIn 5 months
CT123 (200K)
◎ East Thompson, USA▤ Apr 3, 2027
200 km
RunningIn 6 months
San Diego 100 Mile Endurance Run
◎ Mount Laguna, USA▤ Apr 30, 2027
160.9 km
RunningIn 6 months
Grayson Highlands 50 Mile / 50k / 25k
◎ Mouth of Wilson, USA▤ May 1, 2027
80.5 km
RunningIn 6 months
Rim Rock 50 Mile Trail Challenge
◎ Napa, USA▤ May 15, 2027
80.5 km