The Frosty Bottom 50/25 is an annual winter endurance event held entirely on the multi-use trails around Anchorage. Ski, bike, or run from Kincaid Chalet to Hilltop for the short version, or continue back to Kincaid for the long race. Sponsored by Chain Reaction Cycles, 9:ZERO:7 BIKES, Broken Tooth, Moose's Tooth, and Bear Tooth. 2016 event is slated for January 16.