Ryan Atkins is a OCR(Obstacle Course Race) athlete with multiple word records in multiple areas. One of them being he did a 24 hour race on a 10 mile course with 20 obstacles and did 100 miles. 

Listen to his iron will and iron mind and how he OverComes the difficult mental battles that he faces 

https://www.instagram.com/ryanatkinsdiet/?hl=en

https://www.spartan.com/en