12K's Of Christmas December 2026

The 12K's Of Christmas December is a virtual run-or-walk challenge completed anywhere throughout December. The primary format is the Super 12K Challenge: complete a total of 12K within 12 days, either in a single effort or by accumulating shorter distances across the month. Participants select their own routes, whether roads, trails, treadmill sessions, or neighborhood loops. The distinctive feature is the Cozy Winter Cabin Advent Calendar medal, featuring 12 removable magnetic doors, windows, or trees. Each reveals a full-color Christmas symbol, and the medal includes a mesh bag for holding the pieces during the challenge. Registration is $34 with free U.S. shipping and remains open until the end of December.