Watch for Larsen to have the race of his life in the 400 freestyle in Beijing.
- CLUB: Trojan Swim Club (TROJ-CA)
- DOB: Sep 1, 1985
- HEIGHT: 6' 0" (182.9 cm)
- WEIGHT: 172 lbs (78.0 kg)
- HOMETOWN: Bakersfield, Calif.
- RESIDENCE: Los Angeles, Calif.
- COACHED BY: Dave Salo
- High School: Mission Viejo HS ’03
- College: USC '07
- College Major: Political Science
- Parents: Alan and Barbara; parents are almond farmers in Bakersfield, Calif.; Barbara was also a competitive swimmer
- Sibling(s): Younger sister (Lindsey) is a diver
- Nickname(s): Larjo; USC teammates and training partners Erik Vendt and Chad Carvin gave him the nickname
- Hobbies Outside the Pool: Driving, socializing
- Ultimate Way to Relax: Driving, sleeping
- Most Influential Person: Father; "Because of his uncompromising integrity and determination."
- Training Stats: Swims 18-20,000 meters/yards per day, 6 hours a day, 6 days a week
- Movies: Top Gun, Gladiator
- tv: Mad Money