Upcoming Trail Running 15Ks

Endurance Grid lists forty-six trail running 15Ks across the US, from September 2026 to July 2027 across 18 states.

46
Races
18
States

What a 15K is

A 15K is a running race where athletes run 9.3 miles long (15 kilometers) for time.

Trail running 15Ks are busiest in October and November, with the most in Ohio, Texas, California, and Florida.

Frequently Asked Questions

How many 15K trail running races are there in the US?
Endurance Grid's Race Calendar lists 46 upcoming 15K trail running races across 18 states.
How far is a 15K trail running?
A 15K is a running race where athletes run 9.3 miles long (15 kilometers) for time.
Which states have the most 15K trail running races?
The states with the most 15K trail running races on Endurance Grid's Race Calendar are Ohio, Texas, California, Florida, Utah, and Minnesota.