Tri-Cities Marathon
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Tri Cities Marathon : Richland, Washington
The 43rd annual Tri Cities Marathon takes place in Richland, Washington, with the event center at the Riverfront Hotel, 50 Comstock St, 99352. The program includes multiple road races held on the same day and brings together athletes, families, and regional supporters.
The race day program includes these distances:
- Marathon - 26.2 Miles
- Marathon Relay - 26.2 Miles
- Half Marathon - 13.1 Miles
- 5K - 3.1 Miles
Registration windows and fees are specified by event. For the marathon, marathon relay, and half marathon, registration opens 2025-10-31 and closes 2026-01-01; the listed registration fees are $70.00 for the marathon, $140.00 for the marathon relay, and $55.00 for the half marathon. Registration for the new 5K opens 2026-06-01 and closes 2026-08-01, with a fee of $25.00.
New for 2026, the marathon course returns to the previous route that includes the Blue Bridge; course certification is pending. The event also introduces the Tri Cities 5K as a new distance. Costumes are noted as welcome for participants. Visit the organization's website for the most recent information.
