2021 Old Man Winter Bike Rally & Run

600 Park Dr, Lyons, CO 80540, USA


The 7th annual Old Man Winter Bike Rally & Run is an iconic celebration of Colorado's best mixed-terrain running and riding where you can take on the snowy foothills of Boulder County.

For 2021, you will have 9 days for this Epic Winter Adventure! Choose your start time during one of the supported weekend days and get your 'pod' of friends and family to join your adventure.

We are very excited to bring our community back together again and a big part of the experience is getting to the starting line in the first place. With that in mind, we have created Team Old Man Winter. By registering for the race or joining the team, you're joining a community that will encourage and inspire your training and sense of adventure all winter long.

You can join Team Old Man Winter without committing to the race, however if you register to race, you're automatically a part of the team!

Event Categories:

Riders - With two bike course options: The 50km route tours some of the scenic, rolling terrain that has made Boulder County, CO one of the country’s most popular gravel riding destinations. The 100km ride starts with the same country riding as the 50km course before sending cyclists on a roller coaster route of climbs and descents through the snow-filled canyons west of Boulder.

Runners - We offer a one-of-a-kind 10km running race with trails, snow, a excellent scenery. 

Multi-Sport - We offer a Run/Bike combo that is popular for multi-sport athletes which involves running the 10K run and riding the 50K bike course.

All participants are supported with well-stocked aid stations, a hot meal, cold beer, and great winter swag!