 Steffi Graf - Paris |
1999 |
|
| WTA | ATP | |
| Australian Open | Australian Open | |
| French Open | French Open | |
| Wimbledon | Wimbledon | |
| United States Open | United States Open | |
 Martina Hingis - Melbourne |
 Lindsay Davenport - Wimbledon |
 Serena Williams - New York |