Tri-Cities Marathon is a running race on October 25, 2026 in Richland, WA, with entry fees from $30 to $200.
Join us as we celebrate another exciting year of endurance, community, and achievement at the 43rd annual Tri-Cities Marathon! Runners of all levels are invited to take part in this long-standing tradition, bringing together athletes, families, and supporters from across the region for an unforgettable race day experience.
New for 2026
Live forecast from the U.S. National Weather Service.
Race day
Sunday, 10/25
High
59°
Low
38°
Conditions
Chance rain showers
Chance of Rain
32%
Wind
5 mph
Population
61,912
as of 2023
City Elevation
400 ft
Nearest Airport
PSC
Tri Cities Airport · 9 mi
Major Hub
GEG
Spokane International Airport · 124 mi
Time Zone
Pacific Time
From Endurance Grid
A mid-size host city. Enough lodging and amenities to keep race weekend easy, without big-city sprawl.
Every finish line starts with a single decision. Claim your spot at Tri-Cities Marathon, put it on the calendar, and turn “someday” into a start date.
4
Days to train
Create a free account to find and save races like this to your athlete profile.
Endurance Grid is here to help you understand the sport, decide if it’s the right fit, and learn how to prepare. For course distances, logistics, and race-day specifics, always defer to the race organizer’s event page.
With running, there's a distance for every fitness level, a community at every start line, and nothing beats the feeling of crossing a finish line you trained for.
Running is an endurance sport that rewards consistency, and showing up every week compounds in ways that will surprise you.
From 5K to marathon, running races are an accessible entry point into endurance sport. There's a distance for every fitness level and a community at every start line.
Tri-Cities Marathon
Oct 25, 2026