Heatwave Half Marathon - St. Louis

Embark on a summertime adventure with the Heatwave Half Marathon, 10K, & 5K! Feel the thrill of competition and the joy of crossing the finish line under the warmth of the summer sun. This event isn't just about setting personal bests – it's a full-on celebration complete with a designer shirt, a dazzling custom medal, chip-timing, complimentary photos, and a FREE scoop of ice cream to cool you down post-race.

Don't worry if you can't be there on race day; our virtual race option means you can join the fun from anywhere! We believe in making our events accessible, so we're offering youth-based pricing and a variety of challenges to suit every age and ability. Whether you're a seasoned athlete aiming for a new record or a family looking for a day of fun, secure your spot and swag by registering before the deadline. Let's make this summer unforgettable!