Simone Biles doing flip on balance beam (State Dept. Photo: © Jeff Roberson/AP Images)
(State Dept./F. Carter. Photo: © Jeff Roberson/AP Images)

Simone Biles is one of the most accomplished gymnasts in history. She won four gold medals and one bronze at the 2016 Olympics in Rio de Janeiro. Biles, from Spring, Texas, owns 25 medals from world championship events, including 19 gold, a record among female gymnasts. Her signature move is the triple-twist, double backflip in the floor exercise.