Train Smart for Success at the Half Distance Triathlon Boise With a swim in Lucky Peak Reservoir, a scenic yet rolling bike through Boise’s countryside, and a warm half marathon along the Boise River Greenbelt, the Half Distance Triathlon Boise offers a course that rewards strategy, endurance, and preparation. Our 24-week Half Distance Triathlon Training Plan, tailored for competitive Masters athletes over 40, is purpose-built to meet these exact demands—helping you train smarter, race ...