All-Out Mardi Crawl
About this race
Get ready for the 11th annual Mardi Crawl, where we blend a wonderful winter run with a festive Mardi Gras celebration, Colorado-style! Starting from the amazing Colorado Tap House in Arvada, you can choose your challenge: relatively gentle 5K and 10K courses, or a more challenging half marathon course. All races take you along the acclaimed Ralston Creek Trail, featuring shady, creekside beauty through Arvada's picturesque open spaces and charming golf course communities. Mardi Crawl is also an official BOLDERBoulder Qualifying event! Use your finish time from any distance in this race to qualify for BOLDERBoulder's qualified waves. This event also is part of the endless series with Runapalooza. This is 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 start at Colorado Tap House to head east on Ralston Creek Trail for a dogleg and aid station, then settle in to a gentle westbound run before heading south to the challenging clockwise Blunn Reservoir loop. After running for approximately 5.4 miles, athletes will return to Ralston Creek Trail for the gentle downhill trip back. 9 opportunities to fuel up (+5 toilets).
10K
10K athletes will start at Colorado Tap House to 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
10K athletes will start at Colorado Tap House to 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 (+2 toilets).
VIRTUAL Half Marathon
Participate virtually! Get all of the swag, including a distance medal, shipped to you the Monday after the event, maintain eligibility for alumni brag tags, and get credit towards the Run Amok Championship!
VIRTUAL 10K
Participate virtually! Get all of the swag, including a distance medal, shipped to you the Monday after the event, maintain eligibility for alumni brag tags, and get credit towards the Run Amok Championship!
VIRTUAL 5K
Participate virtually! Get all of the swag, including a distance medal, shipped to you the Monday after the event, maintain eligibility for alumni brag tags, and get 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 7:03 AM and sets at 5:25 PM local time (MST) in Arvada on February 6, 2027 — 10h 22m 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.
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Results — All-Out Mardi Crawl
Other races near Arvada
Different organizers, within 40 miles, in the next three months
Apex Foundation Trick or Trot 5K & Halloween Hunt
Leyden Rock Turkey Trot 5K
Strides for Sierra 5K run/walk
Excel Eagle Trot 5K/1K Family Fun Run
🏃 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 25 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, 25 Arvada events
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