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

Celebrate the end of the season with the Annual Runapalooza, a must-attend event for athletes ready to challenge themselves! Starting from the renowned Apex Center, tackle the 5K, 10K, or Half Marathon on courses that run west along the Ralston Creek Trail, awarded the "Best of the Best" and known for its scenic open spaces, golf course communities, and beautiful shady creeksides. Experience the new, relatively gentle Half Marathon route around Long Lake Regional Park. Paired with the Mardi Crawl from the Endless Series, this event offers an incredible opportunity to enjoy the athletic and natural wonders of Colorado.