You don't have to arrive at your first Full Distance Triathlon start line already knowing how to race 140.6 miles. You need a clear path from where you are today to Great Falls, Montana, on August 15, 2027. Think of this 36-week beginner triathlon plan as a route with two destinations along the way. FIRST DESTINATION: A FOUNDATION YOU CAN TRUST For 12 weeks, training begins at just 4.5 hours and builds to 6 hours by week 11. Step-by-step swimming videos turn unfamiliar drills into skills you ...