The Big Chill

The Big Chill is a winter running event held in South Milwaukee, Wisconsin, as part of the 21st Annual Winter Run Series, Wisconsin’s largest running series. Scheduled for January 18, 2026, it offers participants the choice of a 5K or 10K race through the scenic heart of Milwaukee and its suburbs. Known as the coldest race of the series, runners are encouraged to bundle up and enjoy the brisk challenge.

The event features gender-specific long sleeve shirts, finisher medals, snacks, professional chip timing, and free digital race photos. It provides a festive atmosphere to stay active and celebrate winter with family and friends. Visit the organization's website for the most recent information.