Celebrate the new year in penguin style!
All-Out Polar Prowl
January 10, 2026 9a
Van Bibber Trail, Arvada, CO
Half Marathon
VIRTUAL Half Marathon
VIRTUAL 10K
VIRTUAL 5K
Get ready!
Athlete details sent to all athletes registered as of Monday, 9a. Didn't get your email? Check your spam folder, confirm your registration with the option above, and read the athlete details with the menu item above.
Questions about the weather?
Don't worry, we will hold the event snow or shine. Make sure to check out this space and our social media Friday afternoon for course and venue conditions. The snow is currently forecast to fall Thursday mid-day to Friday morning, so we won't know the full impact until our course review Friday afternoon. Note that neither the trails nor the venue can be plowed, by us,
Does the upcoming/reported weather not match your running/walking goals?
We are keeping virtual registration open until Saturday 9:20 AM. If you decide to switch to virtual participation, don’t worry about your swag—we will ship your swag and finisher medal to you this coming Monday at no additional charge.
Exciting new look and features!
We're thrilled to introduce the all-new art and design coming to the 2026 Polar Prowl!
Designed by the Race Director (not AI), this refreshed look will be featured everywhere:
- A brand new banner and finish line arch.
- Exciting new swag (race shirt, medal, etc.).
- Awesome new brag tags for our alumni!
Register today to secure your spot and get your hands on this exciting new swag!
But that's not all!
- We now offer age-based pricing for our younger participants (kids younger than 15) and our seasoned runners (seniors 65 and older)!
- The overall winners of the Polar Prowl will take home cash prizes, and may receive prizes from our partners!
- We have brand new ways for your four-legged running buddies to mark their achievements at the finish line—dog finisher dog tags for your medal, or if we have extra medals available, a keepsake medal for purchase.
Get ready to kick off your athletic year at the 13th annual Polar Prowl on Saturday, January 10, 2026! Hosted by All-Out at the Stenger Sports Complex in Arvada, CO, this is Denver's first half marathon of the year and an official BOLDERBoulder qualifying event! Choose your challenge between a 5K, 10K, or Half Marathon and enjoy a relatively flat course that meanders on the Van Bibber Creek Trail, offering breathtaking views of Arvada's open spaces and Table Mountain. This course is super spectator-friendly and you have a good chance for a personal record! Don't forget to dress up for our penguin costume contest with exciting prizes from our beneficiary, Penguins International!
Location
An official BOLDERBoulder qualifying event!
We are thrilled to announce that Polar PRowl has been designated as an official BOLDERBoulder Qualifier event! You can use your finishing time from any distance of this race to qualify for one of the 2026 BOLDERBoulder's qualified waves. For more details on the BB10K qualifying waves, please visit this link.
Benefiting Charity
Did you know that 9 out of 18 penguin species are threatened with extinction? Penguins International is a Denver-based 501(c)3 non-profit committed to protecting penguins to protect the planet. Ongoing projects include supporting Endangered African Penguins in South Africa through an incubator project, building nest boxes in South America for Humboldt Penguins, and funding Emperor Penguin research using SPLASH GPS tracking tags. Take comfort in knowing your donation to Penguins International supports penguin conservation, education, and research initiatives.
Partners
