Chilly Willy 5k/10k/half Marathon - Las Vegas

Kick off the new year with the Chilly Willy 5K, 10K, and Half Marathon in Las Vegas on Sunday, January 4, 2026, starting at 9:00 AM at Bill Briare Park. This winter-themed running event welcomes runners of all levels to embrace the chilly season while choosing their ideal distance—whether it's the 5K, 10K, or the challenging Half Marathon. Participants will enjoy a lively atmosphere filled with themed swag, a memorable finish-line celebration, and the opportunity to earn a finisher medal. Competitive runners can also vie for overall and age-group awards across categories beginning with ages 10 and under. Join a spirited community for a day of exhilarating races, camaraderie, and festive winter fun at the Chilly Willy event in Las Vegas, where the cold air contrasts with the heated excitement of the race.