Mention the Ironman bike leg to any triathlon novice and watch as their jaw drops and their mind is blown. Some 180km (112-miles) after a 3.8km swim and before a marathon run? It’s the stuff of ...

Analyst Thorsten Radde mined the data from over 200,000 Ironman and 70.3 age-group finishes to help you discover which course matches your strengths.