Yuma Territorial Marathon, Half Marathon, 10k and Team Relay

Gear up for an unforgettable running experience at the Yuma Territorial Marathon, Half Marathon, 10k, and Team Relay, set to take place on Saturday, January 31, 2026, in scenic Somerton, Arizona. This USATF-certified, out-and-back course is renowned for its largely flat profile, making it an excellent opportunity for runners aiming for a personal best or even a Boston Marathon qualifying time. Starting and finishing at the convenient Cocopah Casino & Resort, the route guides participants through the heart of Arizona's agricultural landscape, offering a unique visual of vast lettuce and broccoli fields, with many workers actively harvesting as you pass by.

The course itself features a slight downhill grade of approximately 74-75 feet in the early miles, creating a fast start. While predominantly flat, a subtle uphill challenge awaits runners around mile 11-12 for the half marathoners and near mile 24 for marathoners, leading back to the finish line at the casino. Beyond the agricultural vistas, the race traverses through the charming rural communities of Somerton, Gadsden, and San Luis, showcasing the beauty of the desert southwest. Typical race day conditions in late January offer ideal running weather, with highs around 72°F and lows around 48°F, and a minimal 2% chance of precipitation, providing a comfortable respite from winter chills.

Runners can expect a well-organized event, praised for its clear mile markers and aid stations positioned approximately every two miles, offering water, Gatorade, and some nutrition to keep you fueled. While not a large city marathon bustling with crowds, the Yuma Territorial races offer a serene and intimate atmosphere, allowing runners to focus on their stride amidst the unique scenery. Participants often appreciate the locally inspired swag, including technical fabric shirts and finisher medals, and the thoughtful post-race snacks that sometimes feature local produce, like fresh broccoli. Whether you're tackling the full 26.2 miles, the 13.1-mile half marathon, the 10k, or joining friends for the team relay, this race promises a memorable experience in a distinctive Arizona setting.