1990 ATP Tour World Championships
| 1990 ATP Tour World Championships | |
|---|---|
| Date | November 13 – November 18 |
| Edition | 21st |
| Draw | 8S/8D |
| Location | Frankfurt, Germany |
| Venue | Festhalle Frankfurt |
| Champions | |
| Singles | |
 Andre Agassi
|
|
| Doubles | |
 Guy Forget /  Jakob Hlasek
|
|
The 1990 ATP Tour World Championships (also known as the 1990 IBM ATP Tour World Championships for sponsorship reasons) were held in Frankfurt, Germany between November 13 and November 18, 1990.
Andre Agassi defeated 
Stefan Edberg, 5–7, 7–6(7–5), 7–5, 6–2
Guy Forget / Jakob Hlasek defeated 
Sergio Casal / Emilio Sánchez 6–4, 7–6(7–5), 5–7, 6–4
...
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