Sudler Athletic Club

9Round is the best kickboxing fitness studio in Denver that helps you grow stronger with fun, full-body, HIIT workouts. The exercise program focuses on strength training and cardio in a 30-minute, circuit-style format. With no class times, you can work out at our gym on your schedule because a new workout starts every three minutes. With trainer-guided sessions, our program is scalable for all fitness levels, from beginners to pro athletes. The workout changes daily and consists of nine stations of challenging exercises, plus active breaks in between. Get your free intro workout today!