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

Get ready for the ultimate challenge at the All-Out Mardi Crawl, a dynamic run in the Denver area designed for athletes! Starting at the prestigious Apex Center, choose from 5K, 10K, or Half Marathon courses that will take you west along the acclaimed Ralston Creek Trail. Experience the open spaces of Arvada, pass through stunning golf course communities, and enjoy the shady, creekside beauty. The half marathon course offers a gentle loop around Long Lake Regional Park, making it a diverse and enjoyable route for all competitors. Paired with its Endless Series counterpart, Runapalooza, this event is an unbeatable chance to embrace the natural beauty and athletic spirit of Colorado!