All-Out Runapalooza
Arvada's Runapalooza offers a scenic Colorado half marathon with challenging loops and beautiful Front Range views.
Race Date
Aug 8, 2026
Location
Arvada, CO
Quick facts
- Date
- Saturday, August 8, 2026
- Location
- Arvada, Colorado
- Distance
- Half marathon (13.1 mi) + 10K, 5K, 13.1 Miles
- Course
- Loop Course
- Terrain
- Mixed
- USATF certified
- Not listed
- Finishers on record
- 292
Highlights
Good For
Atmosphere
Course
The Experience
The 14th annual Runapalooza in Arvada, Colorado, marks a celebratory end-of-season event. Runners can choose from 5K, 10K, and a half marathon, with the latter tackling a challenging course.
The half marathon combines the shaded beauty of the Ralston Creek Trail with the demanding Blunn Reservoir loop, offering spectacular views of Denver and the Front Range. While the 5K and 10K courses are noted as relatively gentle and creekside, the half marathon presents a more demanding test for participants.
This event, drawing participants from around eight states and typically seeing about 101 finishers, provides a unique opportunity to experience the Colorado landscape. With a repeat-runner rate of approximately 5%, it's a solid choice for those seeking a scenic and challenging race.
Race-provided description
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!
Logistics
Race Day
Saturday, August 8, 2026
Start Time
7:00 AM
Giveaway
T-Shirt
Start Location
14982 W 69th Ave, Arvada, CO, 80007
Course Info
Course Type
Loop Course
Terrain
mixed
Scenery
Mountain, Park
Surface
Paved
Difficulty
Hilly
Net Drop/km
0 m (Flat)
Separation
0.0%
Also Offers
Quality Score
Solid Pick444 years running
~101 finishers a year
growing or steady
5% returning runners
4 timing sources · 3 photos
runners from 8 states
winner 1:19:04
typical high 88°F
Race Day Weather
5-year historical avgStart (Low)
60°
Afternoon (High)
88°
Hot conditions — adjust pace expectations, prioritize hydration
0.0"
Precipitation
13 mph
Wind
45%
Humidity
Historical Finish Times
How 292 finishers actually crossed the line across 3 years.
Most recent
2025
Total finishers
292
Median time
2:08:57
Latest turnout
101
States
22
Turnout by year
2023–2025
Hover the histogram to inspect specific finish times.
Race Photos
Frequently asked
When is the All-Out Runapalooza?
The All-Out Runapalooza is held on Saturday, August 8, 2026, starting at 7:00 AM.
Where does the All-Out Runapalooza take place?
It takes place in Arvada, Colorado.
What distances does the All-Out Runapalooza offer?
The half marathon (13.1 miles), plus 10K, 5K, 13.1 Miles.
Is the All-Out Runapalooza course flat and good for a PR?
The All-Out Runapalooza is a hilly, loop course course.
How many people run the All-Out Runapalooza?
HalfRuns has finish records for 292 runners who have completed the All-Out Runapalooza.
HalfRuns editorial — independent, no paid placement.
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