Race Discovery
All-Out Runapalooza
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All-Out Runapalooza

Arvada, Colorado, United States View on map
Aug 07, 2027 (America/Denver local time)
Running

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).

Aug 07, 2027 Half-Marathon 7:00 AM
$65.00
Open

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).

Aug 07, 2027 10K 7:35 AM
$45.00
Open

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).

Aug 07, 2027 5K 7:45 AM
$35.00
Open

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!

Aug 07, 2027 Half-Marathon 7:00 AM
$35.00
Open

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!

Aug 07, 2027 10K 7:00 AM
$25.00
Open

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!

Aug 07, 2027 5K 7:00 AM
$20.00
Open

Typical race-day weather

Based on 14 years of historical conditions on this event's race dates in Arvada.

Temp (°C)
Minimum temperature (race-day average) 14.5° / Maximum temperature (race-day average) 29.9°
Feels Like (°C)
Minimum feels like — heat index / wind chill (race-day average) 14.5° / Maximum feels like — heat index / wind chill (race-day average) 30.7°
Wind (km/h)
Average wind speed (race-day average)
17.0
Precip (mm)
Average precipitation (race-day average)
0.9mm
Humidity
Average relative humidity (race-day average)
48.4%

Course

Route map and elevation profile

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.

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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, 20 Arvada events

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