 The same year saw Adrian rewrite the record books as a dual Commonwealth Record Holder in the 100m and 200m backstroke.His success continued abroad winning the 1997 and 1998 World Cup and was named best male backstroker.He also competed for his native, and only country at the 1998 World Aquatics Championships and the 1998 Commonwealth Games in Kuala Lumpur where he won a Gold medal as a part of the men's 4 × 100 m medley relay and an individual silver medal in the men's 200m backstroke again in World Record time, This was the first time the USA had been beaten in the men's Medley Relay at a World Championships.