After the 20-year-old Australian defeated Katie Ledecky in the 400-meter freestyle to capture the gold medal, her coach erupted with a wild celebration.
Kolohe Andino, John John Florence, Carissa Moore and Caroline Marks all advanced to the quarterfinals on Monday in Tokyo, as they relished in the Olympic experience.
From retired and waiting tables in Reno to the top of the swimming world, the 24-year-old U.S. swimmer is one of the least likely gold medalists in Tokyo.