Tri-Cities Marathon
Tri-Cities Marathon follows the Columbia River through Richland, Pasco, and Kennewick, using paved paths, several bridges, and open river views.
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Quick facts
- River route connects Richland, Pasco, and Kennewick.
- Paved paths and multiple bridge crossings define the course.
- Community race organized by Three Rivers Road Runners.
- A six-hour course limit applies to the marathon.
Is registration open for the 2026 Tri-Cities Marathon?
Registration for the 2026 Tri-Cities Marathon is open.
We may earn a commission if you register through this link.
About the Tri-Cities Marathon
The Three Rivers Road Runners stage this long-running community marathon with a relay option. It highlights the connected Tri-Cities trail system rather than concentrating the race in one downtown.
Course
The route uses riverside paths and bridge crossings to link the three cities. The profile is generally moderate, but turns, bridge ramps, and wind along the Columbia disrupt perfectly even pacing.
Race-day weather
Late October is often cool and dry in the Columbia Basin. Strong river wind, a cold start, or unseasonably warm sun are all possible on the exposed course.
Past Tri-Cities Marathon dates and results
| Year | Date | Status | Results |
|---|---|---|---|
| 2026 | Sunday, October 25, 2026 | Upcoming | — |
| 2025 | — | Results available | Open results |
Tri-Cities Marathon FAQ
When is the Tri-Cities Marathon?
The 2026 Tri-Cities Marathon is on Sunday, October 25, 2026.
Is registration open for the 2026 Tri-Cities Marathon?
Registration for the 2026 Tri-Cities Marathon is open. View the official registration details at runsignup.com.
Does the Tri-Cities Marathon have live tracking?
Marathon Scout does not list an official live-tracking link for the 2026 Tri-Cities Marathon yet. We only add a tracker after the race or its timing provider publishes it.
Is Tri-Cities Marathon a Boston qualifier?
Yes. Tri-Cities Marathon is a Boston Marathon qualifier. To use the result, you must run the certified full-marathon course within the qualifying window and meet the current standard for your age and gender. Meeting the standard lets you apply but does not guarantee entry, and net-downhill courses can receive a time adjustment under current B.A.A. rules. Review the Boston qualifying times and downhill-course rules, or browse upcoming Boston qualifier marathons.
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