Washington · Marathon · 10K · 5K
Tri-Cities Marathon
Tri-Cities Marathon is a marathon, 10K and 5K event held in Richland, Washington. Its next confirmed date is Sunday, October 25, 2026.
- Race day
- October 25, 2026
- Location
- Richland, WA
Race details
- Date
- Sunday, October 25, 2026
- Location
- Richland, Washington
- Distances
- Marathon, 10K, 5K
- Course
- Marathon: ~400 ft total elevation gain, mostly flat aside from bridge ramp crossings.
- Official website
- runsignup.com
About the Tri-Cities Marathon
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 The marathon course is returning to the previous route that includes the iconic Blue Bridge. Certification is currently pending. And that’s not all — we’re thril…
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Guides from the RaceRove blog
- 7 min read How to Find a 5K, 10K, Half Marathon or Marathon Near You A practical way to find running races near you: pick a distance, decide how far you'll travel, read the listing properly and confirm the details before you register.
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- Blog All guides Planning advice for finding, choosing and travelling to races.
Tri-Cities Marathon: common questions
- When is the Tri-Cities Marathon?
- The next confirmed date is Sunday, October 25, 2026.
- Where is the Tri-Cities Marathon held?
- In Richland, Washington.
- What distances does the Tri-Cities Marathon offer?
- Marathon, 10K and 5K.
- How do I register for the Tri-Cities Marathon?
- Registration is handled by the organiser at runsignup.com. Entry fees, caps and deadlines are set there.
Plan this race in RaceRove
Save it to your plan, compare it with other races, check typical race-day weather and track your 50-state progress in the interactive app.