Is an Iron Man more expensive than you think it is? >> Yes. We call them race cations for a reason. >> What was the hardest one for you? >> Definitely the run today. It got hot. I bonked on the last like 2 and 1/2 miles or so. So, it was a slog to finish. Nutrition is the fourth leg of triathlon. Train your stomach. >> What does it mean when you bonk for the people that don't know? >> It means that you run out of energy and salt. So, your body just stops being able to work correctly. But it's a delicate balance because when you're working really hard, your stomach doesn't want to keep anything