In Rio, she won a silver medal in the 100-meter backstroke with a time of 58.75, three tenths behind the winner Katinka Hosszú. She was not considered by many to be a medal threat since she had never broken 59 seconds prior to the Olympics. Baker also won a gold medal alongside Lilly King, Dana Vollmer, and Simone Manuel as the lead off of the 4x100-meter medley relay.