Master the Arizona Course with a Full Distance Triathlon Training Plan Built for Masters Athletes 40+ This 36-week evidence-based training plan is tailored specifically for athletes over 40 who want to race strong, stay injury-free, and finish with pride. 🏊 Swim – 2.4 Miles in Tempe Town Lake Arizona’s calm, single-loop swim is ideal for efficient pacing. ✅ Swim workouts improve shoulder mobility and stroke efficiency, critical for aging joints. ✅ Cold water prep (61°F) includes progressive ...