Texoma Challenge Denison, TX   Jun 6, 2026

The Texoma Challenge is an endurance event featuring a 5K, 10K, 10K Ruck, Half Marathon, Marathon, 50K, and 50K Relay in the foothills of North Texas at Waterloo Park. The event follows 6.2 mile loop of unique trails beginning and ending in Waterloo Park in Denison Texas.

Course Overview
– Surface: Rooty & dirt single-track trails.
– Course: Waterloo Trails
– Elevation: Rolling hills 500 ft elevation gain per loop.
– Location: Waterlooo Park (1101 Waterloo Lake Dr, Denison, TX 75020)
– Weather: Historic Average shows 68-80 degrees
– No Cup Race: We don’t serve cups, please make sure to bring your own water-carrying system!