The 1998 du Maurier Open was a tennis tournament played on outdoor hard courts. It was the 109th edition of the Canada Masters and was part of the Super 9 of the 1998 ATP Tour and of Tier I of the 1998 WTA Tour. The men's event took place at the National Tennis Centre in Toronto in Canada from August 3 through August 10, 1998, while the women's event took place at the du Maurier Stadium in Montreal in Canada from August 17 through August 23, 1998.
Patrick Rafter defeated Richard Krajicek 7âÂÂ6<sup>(7âÂÂ3)</sup>, 6âÂÂ4
Monica Seles defeated Arantxa Sánchez-Vicario 6âÂÂ3, 6âÂÂ2
Martin Damm / Jim Grabb defeated Ellis Ferreira / Rick Leach 6âÂÂ7, 6âÂÂ2, 7âÂÂ6
Martina Hingis / Jana Novotná defeated Yayuk Basuki / Caroline Vis 6âÂÂ3, 6âÂÂ4