Caeleb Dressel
Age: 24
Hometown: Green Cove Springs, Florida
Events: 50 meter freestyle; 100 meter freestyle; 100 meter butterfly
Prior Olympic Victories: Rio 2016; two gold medals
Simone Manuel
Age: 24
Hometown: Sugar Land, Texas
Events: 50 meter freestyle
Prior Olympic Victories: Rio 2016; two gold, two silver medals
Tom Shields
Age: 29
Hometown: Huntington Beach, California
Events: 100 meter butterfly
Prior Olympic Victories: Rio 2016; one gold medal
Katie Ledecky
Age: 24
Hometown: Bethesda, Maryland
Events: 200 meter freestyle; 400 meter freestyle; 800 meter freestyle; 1,500 meter freestyle
Prior Olympic Victories: London 2012; one gold medal; Rio 2016; 4 gold, one silver medal
Bobby Finke
Age: 21
Hometown: Clearwater, Florida
Events: 800 meter freestyle; 1,500 meter freestyle
Prior Olympic Victories: Rookie
Katie Grimes
Age: 15
Hometown: Las Vegas, Nevada
Events: 800 meter freestyle
Prior Olympic Victories: Rookie
Ryan Murphy
Age: 25
Hometown: Jacksonville, Florida
Events: 100 meter backstroke; 200 meter backstroke
Prior Olympic Victories: Rio 2016; three gold medals
Emma Weyant
Age: 19
Hometown: Sarasota, Florida
Events: 400 meter individual medley
Prior Olympic Victories: Rookie
Townley Haas
Age: 24
Hometown: Richmond, Virginia
Events: 200 meter freestyle
Prior Olympic Victories: Rio 2016; one gold medal
Allison Schmitt
Age: 31
Hometown: Canton, Michigan
Events: 200 meter freestyle; 4x100 freestyle relay
Prior Olympic Victories: Beijing 2008; one bronze medal, London 2012; three gold, one silver, one bronze medal, Rio 2016; one gold, one silver medal
Andrew Seliskar
Age: 24
Hometown: McLean, Virginia
Events: 4x200 freestyle relay
Prior Olympic Victories: Rookie
Ashley Twichell
Age: 32
Hometown: Fayetteville, New York
Events: 10 kilometer open water swim
Prior Olympic Victories: Rookie
Drew Kibler
Age: 21
Hometown: Carmel, Indiana
Events: 4x200 freestyle relay
Prior Olympic Victories: Rookie
Lydia Jacoby
Age: 17
Hometown: Seward, Alaska
Events: 100 meter breastroke
Prior Olympic Victories: Rookie
Jake Mitchell
Age: 19
Hometown: Carmel, Indiana
Events: 400 meter freestyle
Prior Olympic Victories: Rookie
Bella Sims
Age: 16
Hometown: Las Vegas, Nevada
Events: 4x200 meter freestyle relay
Prior Olympic Victories: Rookie
Kieran Smith
Age: 21
Hometown: Ridgefield, Connecticut
Events: 200 meter freestyle; 400 meter freestyle
Prior Olympic Victories: Rookie
Paige Madden
Age: 22
Hometown: Mobile, Alabama
Events: 400 meter freestyle; 4x200 freestyle relay
Prior Olympic Victories: Rookie
Bowe Becker
Age: 23
Hometown: Las Vegas, Nevada
Events: 4x100 meter freestyle relay
Prior Olympic Victories: Rookie
Brooke Forde
Age: 22
Hometown: Louisville, Kentucky
Events: 4x200 meter freestyle relay
Prior Olympic Victories: Rookie
Patrick Callan
Age: 21
Hometown: Owasso, Oklahoma
Events: 4x200 meter freestyle relay
Prior Olympic Victories: Rookie
Erica Sullivan
Age: 20
Hometown: Las Vegas, Nevada
Events: 1,500 meter freestyle
Prior Olympic Victories: Rookie
Michael Andrew
Age: 22
Hometown: Encinitas, California
Events: 50 meter freestyle; 100 meter breastroke; 200 meter individual medley
Prior Olympic Victories: Rookie
Catie Deloof
Age: 24
Hometown: Grosse Point, Michigan
Events: 4x100 meter freestyle relay
Prior Olympic Victories: Rookie