Women's singles
1998 du Maurier Open
1997 Champion	Monica Seles
Champion	Monica Seles
Runner-up	Arantxa Sánchez Vicario
Score	6–3, 6–2

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.

Draw

Finals

	Semifinals							Final
	1	Martina Hingis	6	3	2
	5	Monica Seles	4	6	6
								5	Monica Seles	6	6
								3	Arantxa Sánchez Vicario	3	2
	3	Arantxa Sánchez Vicario	4	7	6
	2	Jana Novotná	6	6	2

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	M Hingis	6	6
		S Plischke	6	6					S Plischke	4	1
		R Grande	1	1											1	M Hingis	6	6
		M Vento	6	6											16	A Sugiyama	3	0
		A Mauresmo	3	4					M Vento	4	0
	Q	N Dechy	6	5				16	A Sugiyama	6	6
	16	A Sugiyama	7	7																		1	M Hingis	7	3	6
	14	S Testud	6	6																		14	S Testud	6	6	4
	Q	R McQuillan	1	3				14	S Testud	6	6	6
		I Majoli	6	6					I Majoli	7	4	1
		B Paulus	3	1											14	S Testud	7	4	6
	WC	S Jeyaseelan	7	6											9	I Spîrlea	6	6	1
	Q	N Pratt	5	3				WC	S Jeyaseelan	7	6	0
								9	I Spîrlea	6	7	6

Section 2

	First round							Second round							Third round							Quarterfinals
								5	M Seles	6	6
		T Snyder	7	6					T Snyder	2	1
		A Miller	5	2											5	M Seles	6	6
		Y Basuki	6	6												Y Basuki	3	3
	Q	S-T Wang	3	1					Y Basuki	7	6
	WC	J Nejedly	4	2				12	D Van Roost	5	3
	12	D Van Roost	6	6																		5	M Seles	6	6
	10	P Schnyder	4	3																			A Huber	3	4
	Q	F Labat	6	6				Q	F Labat	2	4
		A Huber	6	6					A Huber	6	6
	WC	V Webb	4	1												A Huber	7	7
		F Li	6	7											8	A Coetzer	5	6
	Q	A Dechaume-Balleret	3	5					F Li	3	4
								8	A Coetzer	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								6	C Martínez	7	6
		J Halard-Decugis	0	7	6			Q	A Frazier	6	4
	Q	A Frazier	6	5	7										6	C Martínez	6	6
		R Dragomir	6	7											15	A Kournikova	0	3
		A-G Sidot	3	6					R Dragomir	6	2	4
		A Fusai	2	4				15	A Kournikova	4	6	6
	15	A Kournikova	6	6																		6	C Martínez	3	4
	11	N Tauziat	4	6	6																	3	A Sánchez Vicario	6	6
	Q	S Cacic	6	4	2			11	N Tauziat	6	6
		T Tanasugarn	1	6					K Po	3	3
		K Po	6	7											11	N Tauziat	6	1	2
		N Sawamatsu	4	3											3	A Sánchez Vicario	3	6	6
		K Habšudová	6	6					K Habšudová	6	5	2
								3	A Sánchez Vicario	0	7	6

Section 4

	First round							Second round							Third round							Quarterfinals
								7	S Graf	6	6
		V Ruano Pascual	5	6	6				V Ruano Pascual	0	1
	LL	K Hrdličková	7	4	2										7	S Graf	4	4
	LL	A Smashnova	6	5	2											M Serna	6	6
		M Serna	1	7	6				M Serna	7	6
		C Morariu	7	1	6				C Morariu	6	3
	17	L Raymond	6	6	2																		M Serna	6	1	1
	13	M Pierce	1	1																		2	J Novotná	2	6	6
		M J Fernández	6	6					M J Fernández	5	3
		S Farina	7	6	6				S Farina	7	6
		B Schett	5	7	1											S Farina	1	4
		M Oremans	4	3											2	J Novotná	6	6
		E Likhovtseva	6	6					E Likhovtseva	5	2
								2	J Novotná	7	6

References

• 1998 du Maurier Open Draw