Upcoming Trail Running Half Marathons

Endurance Grid lists one hundred forty-five trail running half marathons across the US, from October 2026 to October 2027 across 33 states.

145
Races
33
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 November and April, with the most in California, Texas, Ohio, and North Carolina.

Frequently Asked Questions

How many Half Marathon trail running races are there in the US?
Endurance Grid's Race Calendar lists 145 upcoming Half Marathon trail running races across 33 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, Texas, Ohio, North Carolina, South Carolina, and Florida.