Tri-Cities Marathon

Tri-Cities Marathon is run in Richland, Washington, on October 25, 2026, with the marathon (26.2 miles) starting at 8 a.m. and the half marathon (13.1 miles) at 9 a.m. Relay options are also offered. Both courses run mostly on paved paths through Richland and Pasco, are generally flat, and have marked turns and aid stations. The marathon course is USATF certified.

Flat, paved and certified is close to the ideal recipe for a fast time, so this is a sensible place to attempt a marathon personal best or a Boston qualifier. Even pacing pays off on a course without hills to break the rhythm: pick a target pace you can hold from the first mile rather than banking time early. Local training groups and coaching programs support runners of all levels, which helps if you want structure in the sixteen weeks leading up to race day.