What do you wish you knew before your first ironman? : r/triathlon
You don't need to be fast every day. 80% of your training should be low-intensity to build a durable engine. Iron Man 1
While I am focusing on the (the most common interpretation), I have also included a brief section on the triathlon if that was your goal. Option 1: The MCU Movie (Dominant Intent) What do you wish you knew before your first ironman