 He won his second gold medal by swimming the final freestyle leg for the first-place U.S. team in the men's 4×100-meter medley relay, together with teammates Charlie Hickcox (backstroke), Don McKenzie (breaststroke), and Doug Russell (butterfly).The two U.S. relay teams set new world records in both events.Walsh also captured a silver medal for his second-place performance (52.8 seconds) in the men's 100-meter freestyle event, finishing six tenths (0.60) of a second behind winner Mike Wenden of Australia, and two tenths (0.20) of a second ahead of fellow American Mark Spitz.