Brrrrr… baby, it’s cold outside—but that’s exactly how we like it!
At the Waukesha JanBoree, we don’t hide from winter—we celebrate it with a No Mopin’, Nose Nippin’, Cold Snappin’ Good Time! ❄️

Join us for the Frosty 5K, a highlight of both the JanBoree festivities and the Wisconsin Chilly Willy Winter Run Series. It’s the perfect excuse to bundle up, lace up, and get moving in that crisp, invigorating winter air. The fast and flat two-lap course loops around the scenic Fox River in beautiful Frame Park—perfect for speedsters, strollers, and everyone in between. It’s family-friendly, fun, and totally frosty. And the fun doesn’t stop at the finish line! With over 35 exciting JanBoree events happening throughout Waukesha all weekend long, there’s something for everyone.

We won’t pretend it’s warm—but every January, hundreds of bold and bundled runners show up to prove that Wisconsin winters are meant to be celebrated.

🔥 So what are you waiting for? Embrace the chill, join the thrill, and make the Frosty 5K your coolest tradition yet!