Course
A road marathon based at the Riverfront Hotel in Richland, returning in 2026 to the older route that crosses the iconic Blue Bridge over the Columbia River. A marathon relay, half marathon and a new costumed 5K run alongside it. Course certification was pending at the time of listing.
Marathon42.2 km
Half Marathon21.1 km
5K5 km
Key dates
- !RegistrationOpen now
- ★Race daySun 25 Oct 2026
Date confirmed with the organiser · entry window checked by RunCalendar
About
A marathon, half marathon and 5K in Richland, Washington, following the Columbia River through the Tri-Cities. The course uses the riverfront trail connecting Richland, Kennewick and Pasco.
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Save Tri-Cities Marathon to your season and RunCalendar reminds you the morning entries open and before they close. Free on iPhone, no account needed.
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