The Multi-Event Grind: Decathlon, Heptathlon & Pentathlon Fueling Ask any multi-event athlete what the hardest part of their competition is and you'll hear a lot of answers: the 1500m on Day 2, the pole vault at the end of a long day, the mental fatigue by the fourth event. They're all right. But ask a sports dietitian, and they'll tell you the hardest part is almost always the fueling — because no other athlete in track and field has to eat, digest, compete, eat again, wait, compete again, ...

The Multi-Event Grind: Decathlon, Heptathlon & Pentathlon Fueling Ask any multi-event athlete what the hardest part of their competition is and you'll hear a lot of answers: the 1500m on Day 2, the pole vault at the end of a long day, the mental fatigue by the fourth event. They're all right. But ask a sports dietitian, and they'll tell you the hardest part is almost always the fueling — because no other athlete in track and field has to eat, digest, compete, eat again, wait, compete again, ...