Tri-Cities Marathon Richland, WA   Oct 26, 2025

The Tri-Cities Marathon is back! Join at the Riverfront Hotel in Richland to run a half or a full marathon. Don’t feel like going that far? You can also form a relay team of up to four and cover the 26.2 miles together.

The Half Marathon course will be the same as before, an out and back through Richland and Pasco, mostly on the paved trails, 6.5 miles each way. This is a USATF Certified Course and is also record eligible.

The Marathon course will be changed this year, as the Blue Bridge construction won’t be finished until January 2025. The new course is not finalized yet, but will include a full loop of the river trail with an out and back section to make 26.2 miles. The start and finish locations will remain the same as before. We plan to have the Marathon course certified this year, so you can qualify for Boston, Chicago, etc., or to simply make your results official.

Both courses are (mostly) flat and 100% on pavement. Apart from the bridge crossings, no hill on either course gains more than 20 feet total. Elevation data differs greatly between measurements, but most GPS watches say around 400ft gain for the marathon.