Three-time defending champion Monica Seles defeated Arantxa Sánchez Vicario in the final, 6–3, 6–2 to win the women's singles tennis title at the 1998 Canadian Open.
Seeds A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. The top nine seeds received a bye to the second round.
Martina Hingis (semifinals) Jana Novotná (semifinals) Arantxa Sánchez Vicario (final) Venus Williams (withdrew) Monica Seles (champion) Conchita Martínez (quarterfinals) Steffi Graf (third round) Amanda Coetzer (third round) Irina Spîrlea (third round) Patty Schnyder (first round) Nathalie Tauziat (third round) Dominique Van Roost (second round) Mary Pierce (first round) Sandrine Testud (quarterfinals) Anna Kournikova (third round) Ai Sugiyama (third round) Lisa Raymond (first round)
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
Qualifying
Qualifying seeds
Qualifiers
Lucky losers
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
References
External links 1998 du Maurier Open Draw Main draw (WTA)