Josh Davis Mark Gangloff Matt Grevers Brendan Hansen Misty Hyman Dagny Knutson Ariana Kukors Jason Lezak Ryan Lochte Christine Magnuson Josh Schneider Eric Shanteau Kim Vandenberg Peter Vanderkaay Dana Vollmer David Walters Kate Ziegler

As the world's premier backstroker, Aaron Peirsol regularly breaks his own world-record times. Take his 100m backstroke world records for example:

• 53.45  - 2004 Olympics
• 53.17  - 2005 World Championships
• 52.98  - 2007 World Championships
• 52.89  - 2008 U.S. Olympic Trials
• 52.54  - 2008 Olympics
• 51.94  - 2009 National Championships

Olympics
2008
Gold 100m backstroke (WR)
Silver 200m backstroke
Gold 400m medley relay (WR)

2004
Gold 100m backstroke
Gold 200m backstroke
Gold 400m medley relay

2000
Silver 200m backstroke

World Championships
2009
Gold 200m backstroke (WR)
Gold 400m medley relay (WR)

2007
Gold 100m backstroke
Silver 200m backstroke

Mutual of Omaha Pan Pacific Championships
2010
Gold 400m medley relay
Gold 100m backstroke

Mutual of Omaha Duel in the Pool
2009
Silver 100m backstroke
Bronze 200m backstroke

For more on Aaron, visit mutualofomaha.com/usaswim.