All-Out Runapalooza
About this race
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!
Join fellow runners on August 2, 2025 for the All-Out Runapalooza. It's a fantastic Half-Marathon, 10K, 5K featuring a flat and fast course in Arvada.
Pick your distance
Running
Half Marathon
Half marathon athletes will head southwest out of the Apex lot then east on Ralston Creek Trail for a short dogleg and aid station, then athletes can settle in to a 4 mile westbound run before heading south to the NEW Long Lake Park loop. After running clockwise for approximately 3.6 miles, athletes will return to Ralston Creek Trail for the downhill trip back. 12 opportunities to fuel up (+7 toilets).
10K
10K athletes will depart the south end of the Apex parking lot then head west on Ralston Creek Trail. As an out & back course, they will run 3.1 miles before turning around to return the way they came. 4 opportunities to fuel up (+2 toilets).
5K
5K athletes will depart the south end of the Apex parking lot then head west on Ralston Creek Trail. As an out & back course, they will run 1.55 miles before turning around to return the way they came. 2 opportunities to fuel up.
VIRTUAL Half Marathon
Participate virtually! Get all of the SWAG, including a distance medal, shipped to you the week after the event, maintain eligibility for series finisher award and alumni brag tags, and get distance credit towards the Run Amok Championship!
VIRTUAL 10K
Participate virtually! Get all of the SWAG, including a distance medal, shipped to you the week after the event, maintain eligibility for series finisher award and alumni brag tags, and get distance credit towards the Run Amok Championship!
VIRTUAL 5K
Participate virtually! Get all of the SWAG, including a distance medal, shipped to you the week after the event, maintain eligibility for series finisher award and alumni brag tags, and get distance credit towards the Run Amok Championship!
About Arvada
All-Out Runapalooza takes place in Arvada, Colorado, United States. The local timezone is America/Denver.
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Race information has been sourced from the event's official website and other publicly available resources. For the most up-to-date details, please refer to the official website directly. If you notice any incorrect or missing information, don't hesitate to reach out to us by email.