Tri-Cities Marathon
Always double-check with the organizer's website! This page may contain affiliate links.
Tri-Cities Marathon
The Tri-Cities Marathon is the 43rd annual running event held in Richland, Washington on October 25, 2026. It takes place at the Riverfront Hotel, 50 Comstock St, Richland WA 99352, and offers multiple race options over the same day.
Available distances include:
- 26.2 Miles Marathon
- 26.2 Miles Marathon Relay
- 13.1 Miles Half Marathon
- 3.1 Miles 5K
Registration windows and fees vary by event. Marathon, Marathon Relay, and Half Marathon registration opens October 31, 2025 and closes January 1, 2026; published fees are $70.00 for the Marathon, $140.00 for the Marathon Relay, and $55.00 for the Half Marathon. The 5K opens registration June 1, 2026 and closes August 1, 2026 with a published fee of $25.00.
Changes noted for 2026 include a return of the marathon course to the previous route that includes the Blue Bridge; course certification is pending. A new Tri-Cities Spooktacular 5K is offered for 2026 and costumes are welcome. The description above reflects the event details provided for the 2026 edition. Visit the organization's website for the most recent information.
