What does it take to be an Ironman World Champion and how much has their training changed over time?
We chatted to 2025 Ironman World Champion Casper Stornes and 3-time Ironman World Champion Craig Alexander to compare their training 14 years apart.
From new technology and mileage to rest and recovery discover how the world’s best have evolved to go 28 minutes faster over the last decade.
00:00 How Much Has Training Changed?
01:05 How much faster are the pros today?
02:40 Handwritten Notes vs. TrainingPeaks
03:42 Preparation for the World Champs
05:44 Training on Feel vs. Data
08:44 Self-Coached World Champions
11:53 Swim & Bike Training Weeks
16:53 Run Training | The Impact of Super Shoes
21:02 Indoor Training
25:08 – Recovery & Heat Adaptation
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Do you think we’ve become too reliant on data, or is ‘training by feel’ only for the world’s best? Let’s discuss below! 👇
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