Simone Biles and Gabby Douglas made Sports Illustrated's "Fittest 50" list. Biles came in at No. 3 and Douglas at No. 16.

Athletes were assessed on six criteria, including strength: the pushing-off power of a pole vaulter or the ballistic backhand of a Grand Slam champion; speed: the top-end velocity of a sprinter or the quick-cut burst of a point guard; endurance: a cyclist’s ceaseless drive or a boxer’s ability to absorb punishment and keep punching; and agility: the fluid movements of a gymnast or the knife-edge balance of a downhill skier.

British track and field athlete Jessica Ennis-Hill took the No. 1 spot. Other athletes on the list include Serena Williams, Holly Holm, Kerri Walsh Jennings, Ronda Rousey, and Missy Franklin. See the full list here.




On the men's side, Donnell Whittenburg was honored at No. 19 and Sam Mikulak at No. 41. USA track and field athlete Ashton Eaton took the top spot for the men.

What other gymnasts do you think deserved a spot on the list?