Prepare for an unforgettable journey along the stunning Columbia River at the Run the River Marathon, taking place on April 18, 2026, in Kennewick, WA. This exceptional event offers distances for every runner, including a full 26.2-mile marathon, a marathon relay, a 13.1-mile half marathon, and a scenic 5K. The course is celebrated for its flat and fast profile, boasting a total elevation gain of under 410 feet, primarily encountered on the picturesque bridge crossings that connect Kennewick, Richland, and Pasco. Runners will enjoy miles of paved paths and roadways, offering breathtaking views of beautifully landscaped parks, the meandering Columbia River, and the rugged mountains in the distance. The marathon course is USATF certified and is a popular Boston Marathon qualifier, while the half marathon and 5K courses are also certified for accurate distances.

Run the River is renowned for its exceptional organization and runner-focused atmosphere. Aid stations are strategically spaced every 1.5 to 2.5 miles, well-stocked with water, GU Roctane sports drink, and GU energy gels, all supported by enthusiastic volunteers. The festive themed aid stations and readily available restrooms ensure a comfortable race experience. Typical race day conditions in mid-April feature ideal temperatures, with highs around 67°F and lows around 42°F, and only a 1% chance of precipitation, providing a prime opportunity for personal bests.

Starting and finishing in Kennewick's Columbia Park, this "hidden gem" of the Pacific Northwest promises a seamless event from start to finish. Participants consistently praise the clear course markings, dedicated volunteer support, and impressive post-race amenities, including a recovery zone with physical therapists, chiropractors, and massage therapists. With high-quality swag, including a finisher's medal and race shirt, and a lively finish line festival, the Run the River Marathon delivers a memorable and rewarding experience for runners of all abilities.