Upcoming Trail Running 50Ks

Endurance Grid lists one hundred thirty-six trail running 50Ks across the US, from August 2026 to November 2027 across 33 states.

136
Races
33
States

The distance

What a 50K is

A 50K is a running race where athletes run 31.1 miles long (50 kilometers) for time.

Trail running 50Ks are busiest in October and September, with the most in Texas, California, Pennsylvania, and Ohio.

Frequently Asked Questions (FAQs)

How many 50K trail running races are there in the US?+
Endurance Grid's Race Calendar lists 136 upcoming 50K trail running races across 33 states.
How far is a 50K trail running?+
A 50K is a running race where athletes run 31.1 miles long (50 kilometers) for time.
Which states have the most 50K trail running races?+
The states with the most 50K trail running races on Endurance Grid's Race Calendar are Texas, California, Pennsylvania, Ohio, Colorado, and Montana.