Michael Phelps hugs Aaron Piersol after the duo helped the U.S. 4 x 100-meter medley relay team win the gold medal in a world-record time of 3 minutes, 29.34 seconds. The win gave Phelps his eighth gold medal of the Beijing Olympic Games, breaking Mark Spitz's 36-year-old record for golds in a single Olympics. "We wanted to do this for all of us, not just Michael," Piersol said. "But as far as whether we'll ever see another like Mike? Mark came around 30-some years ago, but ... the term Spitzian feat might be outdated now. It might be Phelpsian feat. I think I just coined that phrase."