The Dallas–Little Elm Half Distance Triathlon is known for its unique combination of cool open-water swimming, fast rural cycling, and spectator-friendly, crushed gravel trails. This 36-week Half Distance Triathlon training plan has been intentionally designed to prepare senior triathletes (age 60+) to race this course with strength, endurance, and confidence. 🏊‍♂️ Swim Readiness for Lewisville Lake With historical water temperatures ranging from 58–71°F, there's a strong likelihood of a ...