Marathon races in United States — 2026 trail running calendar

May

29

MileBuilt 3-Day Memorial Day Bridge Challenge

Winter Park, Florida, United States

$35.00 - $85.00

Trail running Running

Ultra Marathon Half-Marathon 10K +11

Jun

04

Rabid Raccoon 100

Beaver Falls, Pennsylvania, United States

$15.00 - $250.00

Running Trail running

5K 47.2K Ultra Half-Marathon +5

Jun

05

Cinderella Trail Run

Oakland, California, United States

Free - $90.00

Trail running Running

8K Half-Marathon 30K Marathon +3

Jun

05

Weld Your Mettle Running Festival

Eaton, Colorado, United States

$35.00 - $210.00

Trail running Running

Ultra 6.9K 22.5K Marathon +9

Jun

06

Griffith Park Trail Marathon Relay & 8K

Los Angeles, California, United States

$45.00 - $279.00

Trail running

Marathon 8K

Jun

19

Jasper Mountain Trail Fest

Dayton, Washington, United States

$30.00 - $70.00

Trail running

Half-Marathon Marathon 6.9K

Jun

19

Race the Wolf

Sandpoint, Idaho, United States

$35.00 - $65.00

Trail running Running

8K 1.6K Marathon Half-Marathon

Jul

10

Montana Trail Series

West Yellowstone, Montana, United States

$45.00 - $80.00

Trail running

Marathon Half-Marathon Ultra 25K +17

Jul

10

San Lorenzo River Trail Run

Santa Cruz, California, United States

Free - $90.00

Trail running Running

10.1K Half-Marathon 30K Marathon +3

Jul

10

Yellowstone Park Trail Races

West Yellowstone, Montana, United States

$45.00 - $80.00

Trail running Running

Marathon Half-Marathon Ultra 25K +2

Jul

17

Bob Marshall Trail Races

Seeley Lake, Montana, United States

$45.00 - $80.00

Trail running

Ultra 25K Marathon Half-Marathon +2

Jul

17

Hot Summer Singletrack Trail Race

Fort Wayne, Indiana, United States

$30.00

Mountain biking Trail running Wheelchair

Ultra 48.3K 49.9K 29K +2