The Jacksonville Long Distance Triathlon demands a unique combination of endurance, speed, and mental strength—qualities built precisely through this 24-week High-Performance Amateur Long Distance Triathlon Training Plan. Each phase of training mirrors the demands of the St. Johns River swim, the fast and flat downtown bike leg, and the dynamic two-loop run course along Jacksonville’s vibrant riverfront. 💦 Swim-Specific Conditioning The program integrates progressive open-water swim sessions ...