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!
Pick your distance
Running
Half Marathon
Half marathon athletes will head out of the Colorado Tap House then east on Ralston Creek Trail for a short dogleg and aid station, then head westbound before running the clockwise Blunn Reservoir loop. 9 opportunities to fuel up (+5 toilets).
10K
10K athletes will head out of the Colorado Tap House then 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
10K athletes will head out of the Colorado Tap House then 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 (+2 toilets).
VIRTUAL Half Marathon
Participate virtually! Get all of the SWAG, including a finishers medal, shipped to you, continue to earn alumni brag tags, and get modified credit towards the Run Amok Championship!
VIRTUAL 10K
Participate virtually! Get all of the SWAG, including a finishers medal, shipped to you, continue to earn alumni brag tags, and get modified credit towards the Run Amok Championship!
VIRTUAL 5K
Participate virtually! Get all of the SWAG, including a finishers medal, shipped to you, continue to earn alumni brag tags, and get modified credit towards the Run Amok Championship!
Typical race-day weather
Based on 14 years of Open-Meteo archive data for this event's race dates in Arvada, plus the 3 days either side.
The sun rises at 6:04 AM and sets at 8:07 PM local time (MDT) in Arvada on August 7, 2027 — 14h 02m of daylight.
Course
No course map published yet.
The organizer hasn't released a route for this event, and we don't publish guesses. If you're the organizer, send us a GPX file and we'll draw the profile.
Reviews
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Results — All-Out Runapalooza
Other races near Arvada
Different organizers, within 40 miles, in the next three months
Colorado Tap House Jingle Bell Run
Apex Foundation Trick or Trot 5K & Halloween Hunt
Leyden Rock Turkey Trot 5K
All-Out Polar Prowl
🏃 Plan Your Next Race in Arvada
Find upcoming events by distance:
- Arvada 5K Races 21 races
- 10K Run Events in Arvada 7 races
- Arvada Half Marathons 7 races
- Arvada Running Calendar 2026 26 races
Where this page comes from. Race details were last updated on . We re-check listings regularly and again in the week before race day.
- Entries, prices, waves and inclusions — the event's official registration page
- Temperature and humidity — Copernicus ERA5 reanalysis via Open-Meteo (CC BY 4.0)
- Elevation and terrain relief — Copernicus DEM GLO-90, ESA (CC BY 4.0)
- Comparisons and counts — Race Discovery calendar, 26 Arvada events
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