1983 World Championship Tennis Finals – Singles
| Singles | |
|---|---|
| 1983 World Championship Tennis Finals | |
| Champion | John McEnroe |
| Runner-up | Ivan Lendl |
| Score | 6–2, 4–6, 6–3, 6–7, 7–6 |
| Draw | 12S |
Ivan Lendl was the defending champion but lost in the final 6–2, 4–6, 6–3, 6–7, 7–6 to John McEnroe.