Wu's coach, Craig McCord, played a key role in Wu's return to form. Wu said, "In some ways I think he has more confidence in me that I have... He was always under the impression I was going to do well at the Olympic trials and time-wise it was one of my best events ever." After being selected to compete at the 2000 Paralympic Games, Wu won five medals in Sydney, including golds in the 100m backstroke and the 100m butterfly, silvers in the 400m freestyle and the 200m individual medley, and a bronze in the 100m freestyle. Still suffering from another shoulder injury that occurred in 2003, Wu was not expected to compete in the 400m freestyle, but he made the decision to participate, telling his coach, "if I have to go to hospital to win this race, I am willing to do it." He ended up winning the gold medal, coming first. He did not need to go to the hospital but did require medical treatment for 25 minutes after he finished. Other than his gold medal, he also won two more silver medals in 100m backstroke and 200m individual medley.