1989 Monte Carlo Open – Singles

Singles
1989 Monte Carlo Open
Champion	Alberto Mancini
Runner-up	Boris Becker
Score	7–5, 2–6, 7–6, 7–5
Draw	48 (6Q / 4WC)
Seeds	16

Alberto Mancini won in the final 7–5, 2–6, 7–6, 7–5 against Boris Becker.

Ivan Lendl was the defending champion but did not compete this year.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated. All sixteen seeds received a bye to the second round.

	Semifinals							Final
	1	Mats Wilander	0	3
	14	Alberto Mancini	6	6
								14	Alberto Mancini	7	2	7	7
								2	Boris Becker	5	6	6	5
	13	Horst Skoff	3	3
	2	Boris Becker	6	6

	First round							Second round							Third round							Quarterfinals
								1	M Wilander	7	6
	WC	D Nargiso	6	7				WC	D Nargiso	6	1
		F Luna	4	6											1	M Wilander	6	6
		E Jelen	3	2												M Filippini	4	4
		M Filippini	6	6					M Filippini	7	6
								15	M Woodforde	5	1
																						1	M Wilander	6	7
																						9	R Agénor	3	6
								10	R Agénor	6	2	6
	Q	P Arraya	2	6	6			Q	R Osterthun	2	6	2
	Q	R Osterthun	6	2	7										9	R Agénor	6	7
		L Lavalle	0	1												G Forget	2	5
		G Forget	6	6					G Forget	6	6	6
								7	E Sánchez	7	4	1

	First round							Second round							Third round							Quarterfinals
								LL	J Nyström	1	1
	SE	G Ivanišević	5	4				Q	C Limberger	6	6
	Q	C Limberger	7	6											Q	C Limberger	1	3
	Q	F Santoro	4	1											14	A Mancini	6	6
	SE	F Cancellotti	6	6				SE	F Cancellotti	4	4
								14	A Mancini	6	6
																						14	A Mancini	6	6
																						WC	C-U Steeb	3	3
								12	A Chesnokov	4	4
		K Nováček	2	1				WC	C-U Steeb	6	6
	WC	C-U Steeb	6	6											WC	C-U Steeb	6	6
		P Canè	2	7	6											P Canè	4	1
		J Sánchez	6	6	0				P Canè	7	6
								5	J Connors	6	1

	First round							Second round							Third round							Quarterfinals
								6	H Leconte	3	2r
		H de la Peña	6	4	6				P Kühnen	6	3
		P Kühnen	3	6	7											P Kühnen	5	2
		J Gunnarsson	7	6												J Gunnarsson	7	6
		C Bergström	5	1					J Gunnarsson	6	6
								11	S Živojinović	4	2
																							J Gunnarsson	4	4
																						13	H Skoff	6	6
								13	H Skoff	4	6	6
		O Delaître	4	0				Q	M Střelba	6	4	1
	Q	M Střelba	6	6											13	H Skoff	7	7
		M Jaite	6	6	7											M Jaite	5	6
		J Arias	7	3	5				M Jaite	6	6
								4	J Hlasek	4	1

	First round							Second round							Third round							Quarterfinals
								8	G Pérez Roldán	6	6
	WC	T Champion	6	2	6				M Gustafsson	4	2
		M Gustafsson	2	6	7										8	G Pérez Roldán	6	6
		M Vajda	3	1											9	J Svensson	4	4
		T Tulasne	6	6					T Tulasne	7	3	5
								9	J Svensson	6	6	7
																						8	G Pérez Roldán	3	3
																						2	B Becker	6	6
								16	J Arrese	6	6
		J Frawley	6	6					J Frawley	1	0
	Q	L Jönsson	0	3											16	J Arrese	1	3
	WC	H Sundström	4	6											2	B Becker	6	6
		L Duncan	6	7					L Duncan	4	1
								2	B Becker	6	6

• 1989 Monte Carlo Open draw