Zurich
| Year | Period | Type | Winner |
|---|---|---|---|
| 2008 | 13 Oct - 19 Oct | WTA | Venus Williams |
| 2007 | 15 Oct - 21 Oct | WTA | Justine Henin |
| 2005 | 16 Oct - 23 Oct | WTA | Lindsay Davenport |
| 2004 | 17 Oct - 24 Oct | WTA | Alicia Molik |
| 2003 | 12 Oct - 19 Oct | WTA | Justine Henin |
| 2002 | 13 Oct - 20 Oct | WTA | Patty Schnyder |
| 2001 | 14 Oct - 21 Oct | WTA | Lindsay Davenport |
| 2000 | 08 Oct - 15 Oct | WTA | Martina Hingis |
| 1999 | 10 Oct - 17 Oct | WTA | Venus Williams |
| 1998 | 11 Oct - 18 Oct | WTA | Lindsay Davenport |
| 1997 | 12 Oct - 19 Oct | WTA | Lindsay Davenport |
| 1996 | 13 Oct - 20 Oct | WTA | Jana Novotna |
| 1982 | 28 Mar - 13 Sep | ATP | Bill Scanlon |
| 1977 | 29 Dec - 29 Dec | ATP | Jan Norback |