Tri-Cities Marathon Richland, WA   Oct 25, 2026

Join us at the Riverfront Hotel in Richland to run 13.1 or 26.2! Don’t feel like going that far? You can also form a relay team of up to four for the marathon.

The Half Marathon course is 6.55 miles out-and-back into Pasco, turning around on the trail just before the Road 54 boat launch. This is a USATF certified course through 2027.

The Marathon course follows the Pasco river trail past the Cable Bridge before crossing it into Kennewick. From there, the course is a mix of trail and bike lane going west on Columbia Park Trail. Turn north on the 240 side path and west towards Chamna Park, turning around about 1/3 of the way up the I-182 bridge. Follow the 240 trail back into Richland and to the Riverfront Hotel. USATF Certification for this course is in progress.

Both courses are mostly flat apart from the bridges. The final 8 miles of the Marathon course are slightly rolling. Elevation gain for the Marathon is about 400ft.