Beijing:Michael Phelps etched his name with Mark Spitz, Carl Lewis and two others among the winningest Olympians ever on Tuesday.
In winning the 200-meter freestyle, Phelps ran his career Olympic total to nine golds and avenged his only individual loss in Athens four years ago.
Phelps is now 3-for-3 in Beijing, on course to beat Spitz's 36-year-old record of seven golds in a single Olympics.
Also on Tuesday, Americian Aaron Peirsol defended his title in the 100 backstroke with a world record of 52.54.
Natalie Coughlin became the first woman to repeat as champion of the 100 backstroke, winning with an American record of 58.96.
The US dominance was broken only by Australia's Leisel Jones, who won the 100 breaststroke in 1:05.17, just eight-hundredths off her own world record.