Gravel Mixed Surface MAY8 Long

Adventure Fest 2027

Fruita, CO

Long Mountainous Technical

Adventure Fest 2027 is a unique multi-sport experience in one of the Best Destinations for Outdoor Athletes – Fruita, Colorado,…

Presented by Gemini Adventures

Trail Running MAY9 Mid-Distance

Fruita Trail Half Marathon 2027

Fruita, CO

Mid-Distance Rolling Moderate

Last updated June 7, 2026 Event for 2027 has not been confirmed yet… The Fruita Trail Half Marathon 2027 is…

Presented by Gemini Adventures

Trail Running MAY14 Long

XTERRA Oak Mountain 2027

Shelby County, AL

Long Rolling Moderate

Last updated June 7, 2026 Event for 2027 has not been confirmed yet… XTERRA Oak Mountain 2027 is a premier…

Presented by Xterra Planet

Trail Running MAY29

Worlds End Ultramarathon 2027

Forksville, PA

Last updated June 7, 2026 Event for 2027 has not been confirmed yet… This 100K traverse through Pennsylvania’s Endless Mountains…

Presented by Western States 100 Qualifier

Trail Running MAY29

Mohican Trail 100-50-Marathon 2027

Loudonville, OH

Last updated June 7, 2026 Event for 2027 has not been confirmed yet… The fifth-oldest ultra race in North America…

Presented by UTMB World Series

Trail Running JUL9 Ultra

Hardrock 100 Endurance Run 2027

Silverton, CO

Ultra Extreme Highly Technical

The Hardrock 100 Endurance Run 2026 is an ultramarathon of 102.5 miles, plus 33,197 feet of climb and 33,197 feet…

Presented by Rocky Mountain Slam Series

Trail Running JUL16 Ultra

Vermont 100 Endurance Race 2027

Killington, VT

Ultra Extreme Moderate

The Vermont 100 Endurance Race 2026 is an annual premier ultra trail event in July and a Grand Slam of…

Presented by Grand Slam of Ultra-Running

Trail Running JUL26 Ultra

TransRockies Run 2027

Buena Vista, CO

Ultra Extreme Technical

This six-day stage race takes you through the rugged and beautiful backcountry of the Colorado Rockies, covering 120 miles and…

Presented by TransRockies Race Series