From the river-assisted 2.4-mile swim to the 4,300 ft elevation gain across the 112-mile bike course, and the multi-terrain marathon finale, Chattanooga is a complex, strength-endurance test. Our program is built to meet those demands head-on. 🔍 Plan Architecture: Built for Precision and Progression ✔️ 12-Week Base Phase Focus: Aerobic development, neuromuscular conditioning, and durability. Volume builds from 6 to 9.5 hours/week, concluding with a brick assessment session to benchmark ...