This six-month Half Distance Triathlon Training Plan is purpose-built for Masters athletes over 40, and it’s engineered to prepare you for the demands of the Valdivia Half Distance Triathlon — one of South America's most scenic and dynamic race courses. With a 1.9 km point-to-point swim in the clear, cool waters of the Calle-Calle River, a 90 km ride through Valdivia’s undulating countryside, and a flat, fast 21.1 km run through its urban core, this event demands more than general fitness — it ...