Chattanooga, TN lures athletes with its dramatic scenery, idyllic weather and low-key southern charm. This town, known for its abundance of exploration opportunities, is an outdoor lover’s paradise. Sunbelt Bakery IRONMAN 70.3 Chattanooga offers the perfect training opportunity for those getting ready for the September race, or a chance to race in one of the sport's most welcoming race sites for those seeking a half-distance race opportunity.