Upcoming Trail Running Marathons

Endurance Grid lists eighty-one trail running marathons across the US, from September 2026 to August 2027 across 23 states.

81
Races
23
States

What a Marathon is

A marathon is a running race where athletes run 26.2 miles long (42.2 kilometers) for time.

Trail running marathons are busiest in October and April, with the most in California, Texas, Ohio, and Utah.

Frequently Asked Questions

How many Marathon trail running races are there in the US?
Endurance Grid's Race Calendar lists 81 upcoming Marathon trail running races across 23 states.
How far is a Marathon trail running?
A marathon is a running race where athletes run 26.2 miles long (42.2 kilometers) for time.
Which states have the most Marathon trail running races?
The states with the most Marathon trail running races on Endurance Grid's Race Calendar are California, Texas, Ohio, Utah, Indiana, and Montana.