Trail running Events in United States 🇺🇸 2026–2027 — Calendar

18 Upcoming trail running events listed in United States from August 2026 to February 2028 with the most events in California (8), Colorado (3) and Wisconsin (1), including Kodiak 100km (3120 M+) and Mt. Tam 50K.

16 Athletes targeting these events on Intervals.icu

San Juan Softie

Durango, CO, USA Trail Run

Heineman Hills Marathon

Part of Underdown Trail Run: 60k, Marathon, half marathon available

W3259 Heineman Rd, Merril, WI 54452 Trail Run

Corner Canyon 10k

Draper, UT, USA Trail Run

Trailfest 50k

6201 Minaret Rd, Mammoth Lakes, CA 93546, USA Trail Run

Squam Ridge Race

12.2 miles, 3,039 ft. elevation gain

Burleigh Farm Rd, Holderness, NH 03245, USA Trail Run

Trailfest 26k

6201 Minaret Rd, Mammoth Lakes, CA 93546, USA Trail Run

Angeles Crest 100

The Angeles Crest 100 Mile Endurance Run has been held since 1986. It is one of the original five 100-mile races and is…

Wrightwood Trail Run

The Pretzel Run

Louisville, CO, USA Trail Run

Kodiak 100km (3120 M+)

https://kodiak.utmb.world/races/100K

Big Bear Lake, CA, USA Trail Run

Palo Duro Canyon 50k

Canyon, TX 79015, USA Trail Run

Sonoma Fall Classic

Sonoma County, CA, USA Trail Run

Mt. Tam 50K

Mt. Tamalpais is the dominating feature in Marin County. Any true trail runner who sees it wants to run up it. Here’s…

43 Arenal Ave, Stinson Beach, CA 94970, USA Trail Run

Dogwood Canyon 15K

2038 W. State Highway 86, Lampe, MO 65681 Trail Run

Lady of the Lake

405 Vogal State Park Road Trail Run Run

Ripon Turkey Trail Run (10k)

Ripon, CA 95366, USA Trail Run

Utmb Rothrock

301 Bear Meadows Rd, Boalsburg, PA 16827, USA Trail Run

Samson's 10k

2515 Tunnel Rd, Estes Park, CO 80511, USA Trail Run

Kodiak Ultra Marathons by UTMB 100M

Big Bear Lake, CA, USA Trail Run