Singles
1989 Stella Artois Indoor
1988 Champion	Yannick Noah
Final
Champion	Boris Becker
Runner-up	Alexander Volkov
Score	6–1, 6–2
Events
Singles Doubles
← 1988 · Stella Artois Indoor · 1990 →

Yannick Noah was the defending champion but lost in the second round to Slobodan Živojinović.

Boris Becker won in the final 6–1, 6–2 against Alexander Volkov.

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.

	First round							Second round							Quarterfinals							Semifinals							Final
	1	B Becker	6	6	6
		R Agénor	7	2	1			1	B Becker	6	7
		G Forget	6	6	6				G Forget	3	6
		A Järryd	7	3	4										1	B Becker	7	7
		C Bergström	6	6												C Bergström	6	5
		P Kühnen	4	4					C Bergström	6	2	6
		M Šrejber	7	6					M Šrejber	3	6	4
	LL	E Masso	5	2																		1	B Becker	6	6
	3	J McEnroe	6	6																		3	J McEnroe	2	3
		C-U Steeb	3	2				3	J McEnroe	6	6
		M Schapers	6	6					M Schapers	2	3
	Q	D Engel	4	4											3	J McEnroe	6	6
		W Masur	6	1	6										Q	A Cherkasov	2	2
		J Nyström	1	6	1				W Masur	6	7	6
	Q	A Cherkasov	7	4	6			Q	A Cherkasov	7	5	7
	5	H Leconte	6	6	3																								1	Boris Becker	6	6
	6	Y Noah	6	6	7																									Alexander Volkov	1	2
		A Olhovskiy	3	7	6			6	Y Noah	6	6
		Y Doumbia	6	3	4				S Živojinović	7	7
		S Živojinović	3	6	6											S Živojinović	6	3
	WC	G Ivanišević	4	6	4											A Volkov	7	6
		A Volkov	6	3	6				A Volkov	7	7
	Q	M Ostoja	6	1				4	J Hlasek	6	5
	4	J Hlasek	7	6																			A Volkov	6	2	7
	7	J Svensson	6	6																			E Jelen	2	6	6
	WC	M Narducci	4	2				7	J Svensson	4	0
		M Gustafsson	4	2					E Jelen	6	6
		E Jelen	6	6												E Jelen	6	6
	Q	T Carbonell	3	2												P Canè	1	2
		P Canè	6	6					P Canè	6	6
	WC	O Camporese	6	7				WC	O Camporese	4	3
	2	M Mečíř	4	6

• 1989 Stella Artois Indoor Draw