50K

The 50K is the entry distance into ultramarathon racing. It is mostly run on trail and hilly courses. Find a comprehensive list of 50Ks below.

Berkeley Trail Adventure

September 13, 2025
Berkeley

Priest Lake Marathon and 50K

September 13, 2025
Sandpoint

Grindstone Running Festival

September 19, 2025
Shenandoah National Park

Mammoth Trail Fest

September 19, 2025
Mammoth Lakes

Stagecoach Line 100

September 20, 2025
Flagstaff

Three Sisters Skyline

September 20, 2025
Sisters

Ultra Fest 100M, 100K, 50M, 50K

September 20, 2025
Snoqualmie

Red Feather Trail Jamboree

September 26, 2025
Red Feather Lakes

Bogus 50/50

September 27, 2025
Boise

Flagstaff Sky Peaks Mountain Runs

September 27, 2025
Flagstaff

Sunset & Cider Trail Races

September 27, 2025
Auburn

Perpetua Coast

October 4, 2025
Yachats

Kodiak Ultra Marathons

October 10, 2025
Big Bear Lake

Angel's Rest

October 11, 2025
Portland

Defiance 50K, 30K & 15K

October 11, 2025
Tacoma

Mad Meadows

October 11, 2025
Wenatchee

Sasquatch Shuffle 50K, 30K, 20K

October 11, 2025
McCall

Rogue Gorge

October 18, 2025

Silver Falls Trail Runs

October 31, 2025
Salem

Grand Ridge Trail Run

November 8, 2025
Seattle