Singles
1990 SkyDome World Tennis Tournament
Final
Champion	Ivan Lendl
Runner-up	Tim Mayotte
Score	6–3, 6–0
Details
Draw	56
Seeds	16
Events
Singles Doubles
← 1989 · SkyDome World Tennis Tournament

Joakim Nyström was the champion of the event when it last took place, in 1986. He did not participate in 1990.
Ivan Lendl won the title, defeating Tim Mayotte 6–3, 6–0, in the final.

The top eight seeds receive a bye into the second round.

	Quarterfinals							Semifinals							Final
	1	Ivan Lendl	64	714	6
	8	Kevin Curren	77	612	3
								1	Ivan Lendl	6	6
								3	John McEnroe	3	2
	3	John McEnroe	6	6
	5	Jay Berger	4	0
															1	Ivan Lendl	6	6
															6	Tim Mayotte	3	0
	6	Tim Mayotte	4	6	77
	4	Aaron Krickstein	6	4	65
								6	Tim Mayotte	6	78
								2	Brad Gilbert	3	66
		Petr Korda	6	65	2
	2	Brad Gilbert	3	77	6

	First round							Second round							Third round							Quarterfinals
								1	I Lendl	7	6
	Q	M Washington	4	77	4				J Brown	5	1
		J Brown	6	62	6										1	I Lendl	7	6
	WC	P McEnroe	3	1r												P Haarhuis	5	2
		P Haarhuis	6	4					P Haarhuis	6	67	6
		K Evernden	79						K Evernden	4	79	1
	15	P Sampras	67	r																		1	I Lendl	64	714	6
	9	J Courier	6	6																		8	K Curren	77	612	3
		D Cahill	0	3				9	J Courier	3	5
		D Goldie	4	6	3			WC	G Connell	6	7
	WC	G Connell	6	2	6										WC	G Connell	64	6	1
	Q	O Jonsson	0	4											8	K Curren	77	2	6
		A Sznajder	6	6					A Sznajder	0	5
								8	K Curren	6	7

	First round							Second round							Third round							Quarterfinals
								3	J McEnroe	6	6
		D Rostagno	4	5					P Chamberlin	3	3
		P Chamberlin	6	7											3	J McEnroe	6	6
		R Matuszewski	6	6												L Shiras	4	3
	WC	C Pridham	1	2					R Matuszewski	66	2r
		L Shiras	6	7					L Shiras	78	4
	14	S Davis	3	5																		3	J McEnroe	6	6
	11	D Wheaton	3	79	2																	5	J Berger	4	0
		P Lundgren	6	67	6				P Lundgren	5	1
	Q	T Wilkison	2	3					R Reneberg	7	6
		R Reneberg	6	6												R Reneberg	4	66
		G Layendecker	1	5											5	J Berger	6	78
		R Krishnan	6	7					R Krishnan	63	3
								5	J Berger	77	6

	First round							Second round							Third round							Quarterfinals
								6	T Mayotte	7	5	6
		J Pugh	6	2					J Pugh	5	7	3
		J Bates	2	0r											6	T Mayotte	6	4	6
	Q	J Lozano	77	1											Q	J Lozano	2	6	2
		R Seguso	62	0r				Q	J Lozano	7	4	7
		M Vajda	1	77	6				M Vajda	5	6	5
	12	J Grabb	6	65	3																	6	T Mayotte	4	6	77
	13	W Masur	6	66	3																	4	A Krickstein	6	4	65
	Q	J Fitzgerald	4	78	6			Q	J Fitzgerald	6	6
		T Witsken	77	4	5			WC	M Wostenholme	1	1
	WC	M Wostenholme	63	6	7										Q	J Fitzgerald	2	2
		T Nijssen	6	6											4	A Krickstein	6	6
		L Duncan	3	3					T Nijssen	2	2
								4	A Krickstein	6	6

	First round							Second round							Third round							Quarterfinals
								7	A Gómez	3	6	4
	WC	M Laurendeau	2	2					P Korda	6	1	6
		P Korda	6	6												P Korda	77	6
	Q	S DeVries	77	79											10	J Yzaga	61	4
		J Potier	63	67				Q	S DeVries	4	2
		N Kroon	4	1				10	J Yzaga	6	6
	10	J Yzaga	6	6																			P Korda	6	65	2
	16	J-P Fleurian	6	62	5																	2	B Gilbert	3	77	6
		M Šrejber	3	77	7				M Šrejber	4	6	6
		B Orešar	6	69	6				B Orešar	6	4	2
	Q	G Van Emburgh	4	711	2											M Šrejber	2	2
		A Antonitsch	6	79											2	B Gilbert	6	6
		J Arias	4	67					A Antonitsch	3	3
								2	B Gilbert	6	6

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