Aaron Peirsol ties the world record in the 200m backstroke, edging rival Ryan Lochte.
American Aaron Peirsol wins the men's 100m backstroke, lowering his world record as teammate Matt Grevers takes silver.
Aaron Peirsol says in a weird way, the 200m back, where he won, got disqualified, then was reinstated, made the Olympics more fun.
The U.S. team of Aaron Peirsol, Brendan Hansen, Ian Crocker and Jason Lezak wins gold and breaks the world record.
Aaron Peirsol recalls feeling relieved after winning gold in the 100m back in Athens in a close race.
Aaron Peirsol earned an Olympic berth after breaking his world record in the men's 100m backstroke finals at Trials.
Jason Lezak, Aaron Peirsol and Brendan Hansen talk about Lezak's amazing comeback in the 4x100m free relay.
Randall Bal and Aaron Peirsol won their heats, heading into finals as the top qualifiers in the 100m backstroke.
Aaron Peirsol and Ryan Lochte win their heats of the 200m backstroke semifinals.
Aaron Peirsol wins gold in the 100m back.
Aaron Peirsol, who won two golds and a silver in Beijing, talks about his third Olympics.
Aaron Peirsol accomplished his goal of three golds in Athens, and he's still training hard for Beijing.