Ultra races in United States — 2026 running calendar

Summer Sizzler Miles Challenge

Marietta, Georgia, United States

17 May, 2026 (Sun) – 16 Aug, 2026

$25.00

Running

Ultra

Highball to Thurmond Ultra & Relay

Thurmond, West Virginia, United States

17 May, 2026 (Sun)

Running

49.9K Ultra +4

French Creek TriFest (Triathlon & SwimFest)

Elverson, Pennsylvania, United States

16 May, 2026 (Sat) – 17 May, 2026

Triathlon, Aquabike, Running, Duathlon, Swimrun, Swimming

48.3K 25.7K 38.6K 1.9K +7

220 Miles to Rebuild Lives Virtual Run

Seattle, Washington, United States

16 May, 2026 (Sat) – 12 Aug, 2026

$35.00

Running

Ultra

Boone County Classic

Lebanon, Indiana, United States

16 May, 2026 (Sat)

Running

40.2K Ultra +3

Miles for Messiah

Forest City, North Carolina, United States

16 May, 2026 (Sat)

Running

Ultra

Death by 5k Waterloo

Waterloo, Iowa, United States

16 May, 2026 (Sat) – 17 May, 2026

Running

Ultra

Endure Trail Runs

Divide, Colorado, United States

16 May, 2026 (Sat)

Running, Trail running

11K 22.7K Marathon

In It For The Long Run

Huntsville, Alabama, United States

16 May, 2026 (Sat) – 17 May, 2026

Running

Ultra 5K 10K

Walk for Warriors Holland Michigan.

Holland, Michigan, United States

16 May, 2026 (Sat)

Running

8K 16.1K 24.1K 32.2K +2

KEYS100 Ultramarathon

Key West, Florida, United States

16 May, 2026 (Sat) – 17 May, 2026

Running

Ultra +1

Miles 2 Meals 100 Mile Relay

Pittsburgh, Pennsylvania, United States

16 May, 2026 (Sat)

Running

Ultra