Smithville, MO | Sunday, July 26, 2026TriathlonRegistration OpenMemorial / Honor
The Matt Mason “Cowboy UP!” Triathlon/Duathlon has been established to honor, pay tribute, support and celebrate the lives of those who have made the ultimate sacrifice for their country. This triathlon is our way to stay close to our dear friend, Matt Mason, and keep his memory alive while focusing on supporting others like him and their families. Race Distances: Short Course Distance Duathlon is a 1.5 mile run (shotgun start), 11 mile bike course (2 laps), and a 5K run (mostly flat, out and back course). Short Course Distance Triathlon is a 500 meter swim (time trial start), 11 mile bike course (2 laps), and a 5K run (mostly flat, out and back course). Long Course Distance Triathlon is a 1,000 meter swim (time trial start), 18.8 mile bike course (4 laps), and a 10K run (mostly flat, out and back course). Race Day Info: Sunday, July 27, 2025 5:00am – Gates Open 5:15am – Transition/Body Marking Opens 6:15am – Swim Warmup Open **6:30am – Park Gates/Roads Close 6:45am – Transition Closes 6:45 to 7:00am – Opening Ceremonies 7:00am – Race Starts (Long Course athletes in the water first) 10:30am (approx.) – Awards Ceremony and Raffle Winners **Park roads will be closed until last biker is off the course Transition: Transition opens at 5:15am. All athletes will be body marked. Volunteers will be outside the transition entrance ready to help all athletes as they enter. Swim Start: Swim warmup opens at 6:15am. Transition closes at 6:45am and all athletes need to exit the area by that time. Race begins at 7am and long course athletes will enter the water first, followed by short course athletes. The swim course is clockwise, and the start will be a time trial start where athletes enter the water approximately every three seconds. You will see minute marker signs for both short and long course – athletes should place themselves in line according to the swim time that is most comfortable. Duathlon Start: Duathlon will shotgun start on the run path to the right of the b