Named Swimming World Magazine's World Swimmer of the Year in both 2010 and 2011, he has won six Olympic gold medals spanning four Olympic competitions from 2004 to 2016.
He dominated college athletics while swimming and diving for the University of Florida, winning three titles at the NCAA Men's Swimming and Diving Championships.
He has set world records in several events such as the 100 meter individual medley and the 200 meter individual medley (short and long course).
His mother is named Ileana. In 2016, he got engaged to model Kayla Rae Reid; they married in January of 2018. They welcomed a son named Caiden Zane on June 8, 2017. In June 2019, they welcomed a daughter named Liv Rae.
Although he competed against Michael Phelps in the individual events at the Olympic games, they teamed up for the relays.