All-Out Runapalooza
Sat, Aug 8, 2026, 3:00 AM MDT
- Type
- Run
Sign up and verify details on the organizer's official page.
Race feel
Celebrate the end of summer with scenic runs along Ralston Creek Trail and challenging half marathon views of Denver and the Front Range.
- Fun
- Scenic
- Festive
Fun
Scenic
FestiveJoin the 14th annual All-Out Runapalooza for an end-of-season celebration in Arvada, Colorado. Starting from the Colorado Tap House, runners can choose from relatively gentle 5K and 10K courses along the acclaimed Ralston Creek Trail, offering shady, creekside beauty through picturesque open spaces and charming golf course communities. For a greater challenge, the half marathon course extends to include the Blunn Reservoir loop, providing gorgeous views of Denver and the Front Range. This event is a wonderful opportunity to experience Colorado's natural beauty.
What to expect
- Choose between gentle 5K and 10K courses along the scenic Ralston Creek Trail.
- Tackle a challenging half marathon with views of Denver and the Front Range from Blunn Reservoir.
From the organizer
As the summer mornings start to cool, join us for a fantastic end-of-season celebration at our 14th annual Runapalooza! From our new venue at Colorado Tap House, you'll have the chance to tackle relatively gentle 5K and 10K courses that go along the acclaimed Ralston Creek Trail, taking you through shady, creekside beaty along Arvada's picturesque open spaces and charming golf course communities. Or our challenging half marathon course that combines the beauty of the Ralston Creek Trail with the challenging Blunn Reservoir loop with its gorgeous Denver and Front Range views. This event, paired with its Endless Series' counterpart Mardi Crawl, offers a can't-miss opportunity to experience the best of what Colorado has to offer!
