Doubles
1990 Thriftway ATP Championships
Final
Champions	Darren Cahill Mark Kratzmann[1]
Runners-up	Neil Broad Gary Muller
Score	7–6, 6–2
Events
Singles Doubles
← 1989 · Thriftway ATP Championships · 1991 →

The1990 Cincinnati Open, (also known as theThriftway ATP Championships for sponsorship reasons) was a tennis tournament played on outdoorhard courts.^[2] It was the 91st edition of thetournament and was part of the1990 ATP Tour. It took place inCincinnati,Ohio, United States from August 13 through August 20, 1990.^[2]Ken Flach andRobert Seguso were the defending champions, but lost in the second round toSven Salumaa andByron Talbot.Darren Cahill andMark Kratzmann won in the final, 7–6, 6–2, againstNeil Broad andGary Muller.^[1]

The top fourseeded teams receivedbyes to the second round.

Key

	Semifinals							Final
	7	Darren Cahill Mark Kratzmann	7	7
	5	Guy Forget Jakob Hlasek	6	5
								7	Darren Cahill Mark Kratzmann	7	6
									Neil Broad Gary Muller	6	2
		Neil Broad Gary Muller	6	6
	2	Rick Leach Jim Pugh	3	4

	First round							Second round							Quarterfinals							Semifinals
								1	P Aldrich D Visser	7	4	7
		J Bates K Curren	6	4					P Korda P McEnroe	6	6	6
		P Korda P McEnroe	7	6											1	P Aldrich D Visser	3	4
		P Cash C van Rensburg	4	3											7	D Cahill M Kratzmann	6	6
		B Dyke P Lundgren	6	6					B Dyke P Lundgren	5	6	4
		S Cannon J Canter	2	3				7	D Cahill M Kratzmann	7	4	6
	7	D Cahill M Kratzmann	6	6																		7	D Cahill M Kratzmann	7	7
																						5	G Forget J Hlasek	6	5
								3	G Connell G Michibata	4	4
		J Stoltenberg T Woodbridge	6	4	6				J Stoltenberg T Woodbridge	6	6
		G Layendecker R Reneberg	4	6	3											J Stoltenberg T Woodbridge	1	2
		A Gómez M Woodforde	5	4											5	G Forget J Hlasek	6	6
		J Fitzgerald A Järryd	7	6					J Fitzgerald A Järryd	5	2
		M Davis K Kinnear	4	5				5	G Forget J Hlasek	7	6
	5	G Forget J Hlasek	6	7

	First round							Second round							Quarterfinals							Semifinals
	6	S Davis D Pate	4	4
		J Courier P Sampras	6	6					J Courier P Sampras	6	4	3
		A Antonitsch N Odizor	6	7					A Antonitsch N Odizor	3	6	6
		D Nargiso N Pereira	4	5												A Antonitsch N Odizor	6	4
	Q	J Letts M Robertson	3	4												N Broad G Muller	7	6
		N Broad G Muller	6	6					N Broad G Muller	6	6
								4	J Lozano T Witsken	3	4
																							N Broad G Muller	6	6
	8	K Flach R Seguso	3	6	6																	2	R Leach J Pugh	3	4
		J Svensson M Wilander	6	4	4			8	K Flach R Seguso	6	6
	Q	S Salumaa B Talbot	3	7	6			Q	S Salumaa B Talbot	7	7
		D Macpherson L Warder	6	6	4										Q	S Salumaa B Talbot	2	6
		P Galbraith S Kruger	6	6											2	R Leach J Pugh	6	7
		C Beckman L Jensen	1	2					P Galbraith S Kruger	4	5
								2	R Leach J Pugh	6	7

• 1990 Thriftway ATP Championships

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