Lionel Sanders knows firsthand how important nutrition is as an IRONMAN athlete. Check back tomorrow for the full episode to see how he’s partnered with Gatorade Endurance on his quest for 2018 IRONMAN World Championship brought to you by Amazon to help him learn about his overall physiology and dial in his nutrition race strategy.

Daniela Ryf is chasing her 4th consecutive IRONMAN World Championship on October 13 in Kailua-Kona. She has proven to be unstoppable in 2018, thus far.

Can anyone catch the champ?

In 1982, Julie Moss showed up to the IRONMAN World Championship as an unknown. The world watched as she refused to give up and crawled to the finish line. It was a run that would define her and her career to come. Watch Julie describe her famous run in this inspiring video created with HOKA ONE ONE.