It may come as a surprise, but you don’t need to complete hours and hours of continuous training to be successful in endurance sport.
No, really, science says so.
That’s not to say that volume isn’t important. In fact, you’d be silly not to train long distances if you want to succeed in long distance events such as Ironman, 3peaks, multi-stage races, ultra-marathons etc.
BUT, you may not need as much volume as you think.