Question: how long does it take to complete a half ironman?
Answer: Average Half Ironman Finish Times. How long does it take to finish a Half Ironman Triathlon? The answer, based on our analysis of more than 67,000 finishers in 40 Half Ironman triathlons: about 6 hours, on average. Swim 1.2 miles in 45 minutes, Bike 56 miles in 3:00, and Run 13.1 miles in 2:15.