Midwest Triathlon Series 2026

The Midwest Triathlon Series connects three multisport races in the Kansas City area over three consecutive weekends, requiring athletes to compete in all of them rather than selecting a single event. To be eligible for the series, participants must register for all three races: the Matt Mason Memorial Cowboy Up Triathlon, the Shawnee Mission Triathlon & Duathlon, and the Kill Creek Park Triathlon, Duathlon, Aquabike, & Aquathlon. These races typically occur in the morning, from approximately 7:00 AM to noon CDT, and are designed for both seasoned competitors and newcomers prepared for a challenging short series of races. The primary challenge lies in the format: compete, recover, and race again on successive weekends. Shawnee Mission and Kill Creek Park provide the series' park-based multisport environment, with a selection of triathlon, duathlon, aquabike, and aquathlon options available across the three events. Completing all three races earns participants series recognition and unique merchandise, emphasizing consistency throughout the series rather than a single performance.