Upcoming Trail Running Half Marathons

Endurance Grid lists one hundred sixty-six trail running half marathons across the US, from September 2026 to October 2027 across 34 states.

166
Races
34
States

What a Half Marathon is

A half marathon is a running race where athletes run 13.1 miles long (21.1 kilometers) for time.

Trail running half marathons are busiest in October and November, with the most in California, Ohio, Texas, and North Carolina.

Frequently Asked Questions

How many Half Marathon trail running races are there in the US?
Endurance Grid's Race Calendar lists 166 upcoming Half Marathon trail running races across 34 states.
How far is a Half Marathon trail running?
A half marathon is a running race where athletes run 13.1 miles long (21.1 kilometers) for time.
Which states have the most Half Marathon trail running races?
The states with the most Half Marathon trail running races on Endurance Grid's Race Calendar are California, Ohio, Texas, North Carolina, Florida, and South Carolina.