All-Out Mardi Crawl 1M, 5K, 10K and Half Marathon

The All-Out Mardi Crawl is a running event held in the Denver area, featuring courses through the Ralston Creek Trail and Arvada's scenic landscapes. Participants can enjoy views of open spaces, golf course communities, and a loop around Blunn Reservoir. The event is part of the Endless Series, alongside Runapalooza, offering a chance to experience Colorado's natural beauty through a challenging run.