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!
Join fellow runners on February 22, 2026 for the All-Out Mardi Crawl. 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 clockwise Blunn Reservoir loop. After running for approximately 5.4 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 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 week 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 week after the event, maintain eligibility for alumni brag tags, and get credit towards the Run Amok Championship!
About Arvada
All-Out Mardi Crawl 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.