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.
Rebellion
Up Hill Down Dale are excited to release the Rebellion. The Rebellion is a 135 mile (217 Km) Ultra Marathon in Mid Wales. The route

