Texas Sun Showdown Half Marathon, Relay & 5k

Hit the trails of San Antonio at the 3rd Annual Texas Sun Showdown Half Marathon, Relay & 5k on Sunday, June 14, 2026. This popular event, hosted at McAllister Park Pavilion #2, offers a challenge for every runner, whether you're tackling the 13.1-mile half marathon, joining a 2 or 4-person relay team, or speeding through the 5k course. Expect typical race day conditions with highs around 95°F and lows near 74°F, and a low 7% chance of precipitation, making for a true Texas summer running experience.

The Texas Sun Showdown promises a rewarding experience through McAllister Park's scenic trails. Aid stations strategically placed along the course will keep you hydrated with water and Gatorade, while finisher towels on ice will offer a refreshing welcome at the finish line. The half marathon features a dynamic loop course, with specific details and maps available on the race's RunSignup page. Beyond the run, participants are celebrated with Texas-themed finisher medals, stylish race shirts, and a delicious Texas barbecue feast to refuel post-race.

What truly sets this race apart is its welcoming atmosphere and commitment to community. The event offers diverse relay categories including Open, Masters, Super Masters, and mixed-gender teams, alongside special discounts for San Antonio RoadRunners (SARR) members, military personnel, first responders, youth, and seniors. Embrace the spirit of the Lone Star State and make your mark at the Texas Sun Showdown.