Matt Mason "Cowboy UP" Triathlon

JUL
26
2026
Take part in the Matt Mason "Cowboy UP" Triathlon and Duathlon at Smithville Lake in July 2026, featuring swim bike run courses, relays and a virtual entry. Flat lake and bike loops make it great for first timers and seasoned racers.
Sun 26 Jul 2026
Short Course Triathlon -... Long Course Triathlon - 1... Short Course Duathlon - 1...

Always double-check with the organizer's website! This page may contain affiliate links.

Event overview

The Matt Mason "Cowboy UP" Triathlon/Duathlon is scheduled for July 2026 at Smithville Lake Crow's Creek Park, Shelter 5, Smithville, MO. The event includes several race options for individuals, relay teams, and a virtual entry. Entry fees vary by event. Age group and overall awards are given for Men and Women in both short and long course categories.

Course and race details

  • Short Course Duathlon - 1.5 mile run, 11 mile bike, 5K run.
  • Short Course Triathlon - 500 meter swim, 11 mile bike, 5K run.
  • Long Course Triathlon - 1,000 meter swim, 18.8 mile bike, 10K run.
  • Relay options for short and long courses allow teams of 2-3 participants.
  • Virtual Runner option permits participation from anywhere.

Swim starts use a time trial format with athletes entering the water every few seconds and the swim course is run clockwise. The duathlon run uses a shotgun start on a run path away from the finish line. Short course bike laps equal two circuits; long course bike laps equal four circuits. Run courses are mostly flat and out-and-back. Short course athletes pass two water stations on the run; long course athletes pass five. Transition procedures include body marking and monitored entry and exit. Awards and raffle winners are announced near the finish line after the race. Visit the organization's website for the most recent information.