All-Out Runapalooza 2026

The race.

All-Out Runapalooza takes place August 8, 2026, in Arvada, Colorado, featuring five race options: a half marathon, 10K, 5K, 1-mile race, and the West Arvada Giant Cluster. The half marathon combines the Ralston Creek Trail with the Blunn Reservoir loop. The 5K and 10K follow the Ralston Creek Trail through Arvada's open spaces. The event starts at Colorado Tap House.