Orangetheory Fitness San Mateo Share: Fitness/Health Orangetheory Fitness San Mateo Visit Website 101 S. B Street San Mateo, California 94401 (650) 487-0404 Facebook About Map About Our workout is not HIIT. It is heart rate-based interval training, where our certified coach will guide you through our 5 different heart rate zones. What's Nearby? Distance: 5 10 15 20 25 50 mi.