| Singles | |
|---|---|
| 1985 Buick WCT Finals | |
| Champion |
|
| Runner-up |
|
| Final score | 7–6, 6–4, 6–1 |
John McEnroe was the defending champion but lost in the quarterfinals to Joakim Nyström.
Ivan Lendl won in the final 7–6, 6–4, 6–1 against Tim Mayotte.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.