Upcoming Trail Running Marathons

Endurance Grid lists seventy trail running marathons across the US, from October 2026 to October 2027 across 20 states.

70
Races
20
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 May and April, with the most in California, Texas, Ohio, and Montana.

Frequently Asked Questions

How many Marathon trail running races are there in the US?
Endurance Grid's Race Calendar lists 70 upcoming Marathon trail running races across 20 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, Montana, Utah, and Illinois.