Upcoming Ultramarathons in Washington
Endurance Grid lists 4 ultramarathons in Washington, from November 2026 to October 2027 across 4 cities.
Ultramarathon Races in Washington
The ultramarathon race calendar in Washington is busiest in June, July, and October, with races most often in Seattle and Tacoma.
What an ultramarathon is
An ultramarathon is any running race longer than 26.2 miles. The most common distances are the 50K, 50-mile, 100K, and 100-mile — alongside timed events, where you cover as much ground as you can in a fixed window like 6, 12, or 24 hours.
Many ultras run on trails, with aid stations stocked with food, water, and posted cutoff times. For most entrants the goal is to finish, not to race the clock, and hiking the climbs is a normal part of the day.
Train for an Ultra in Washington With Your People
Pick your race, start a group, and train together in the Endurance Grid app. Don’t wait for race day to celebrate.
