 Eventual 2003 Wimbledon Championships runner-up Mark Philippoussis from Australia won the last edition played in a round-robin format in 1998, as the 1999 event was the first played under the current promotion/relegation system, with Swede Thomas Enqvist coming off as the winner.Agassi became the most successful player at the event after his 1998 runner-up finish, reaching five more finals consecutively from 2000 to 2004 (beating Philippoussis in 2000, Yevgeny Kafelnikov in 2001 and Sébastien Grosjean in 2003).Commonwealth Bank took over the sponsorship of the tournament from 2002 to 2004, transforming the "Colonial Classic" into the "Commonwealth Bank International", before the event went sponsorless in 2005, only known as the "Kooyong Classic", as World No.