1989 World Championship Tennis Finals – Singles

Singles
1989 WCT Finals
Champion John McEnroe
Runner-up Brad Gilbert
Score6–3, 6–3, 7–6

Boris Becker was the defending champion but did not compete that year.

John McEnroe won in the final 6–3, 6–3, 7–6 against Brad Gilbert.

The finals were held in Dallas, Texas at Reunion Arena.