The USA Olympian threw out the first pitch before Game 2 at Minute Maid Park, but only after adding some serious flare with a back flip twist.
The 22-year-old stunned the fans in Houston with the electric performance - and she seemed to love starring on baseball's big stage.
The Nationals upset the home fans by winning 12-3 to assume a 2-0 lead in the World Series.
Olympic Gold Medalist Simone Biles throws out the first pitch prior to Game 2 of the 2019 World Series between the Washington Nationals and the Houston Astros at Minute Maid Park
Image credit: Getty Images