 Charlton forged ahead to lead by 5 metres at the 600 m, before proceeding to defeat Borg by 40 m, while lapping the remainder of the field to win gold in a new world record time of 20m 6.6s.In the 400 m freestyle, Charlton again lined up against Borg and Johnny Weissmuller of the United States.Charlton progressed to the final, finishing second to Weissmuller in both his heat and semi-final.