1990 ATP Tour World Championships – Singles
| Singles | |
|---|---|
| 1990 ATP Tour World Championships | |
| Champion | Andre Agassi |
| Runner-up | Stefan Edberg |
| Score | 5–7, 7–6(7–5), 7–5, 6–2 |
| Draw | 8 |
Andre Agassi defeated the defending champion Stefan Edberg in the final, 5–7, 7–6(7–5), 7–5, 6–2 to win the singles title at the 1990 ATP Tour World Championships.