Singles
1999 Heineken Open
Final
Champion	Sjeng Schalken
Runner-up	Tommy Haas
Score	6–4, 6–4
Details
Draw	32 (4 Q / 3 WC )
Seeds	8
Events
Singles Doubles
← 1998 · ATP Auckland Open · 2000 →

Sjeng Schalken defeated Tommy Haas 6–4, 6–4 to win the 1999 Heineken Open singles competition. Marcelo Ríos was the defending champion.

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	M Ríos	7	0	R
		A Pavel	5	2					A Pavel	6	6
		F Vicente	6	4	6				F Vicente	3	4
		J Tarango	2	6	4											A Pavel	3	2
	Q	G Cañas	6	5	3											S Schalken	6	6
		D Vacek	4	7	6				D Vacek	4	4
		S Schalken	78	6					S Schalken	6	6
	7	V Spadea	66	4																			S Schalken	6	6
	3	W Ferreira	1	4																		WC	B Steven	4	4
	WC	B Steven	6	6				WC	B Steven	7	6
		M Safin	6	6					M Safin	5	2
		G Pozzi	3	2											WC	B Steven	6	6
		M Zabaleta	3	6	6											M Zabaleta	0	4
		D Sanguinetti	6	3	2				M Zabaleta	5	6	6
		M Norman	4	79	3				M Norman	7	3	3
	6	F Santoro	6	67	0/R																									Sjeng Schalken	6	6
	5	T Haas	6	77																									5	Tommy Haas	4	4
	Q	A Sá	2	65				5	T Haas	6	6
		J Marín	6	6					J Marín	3	4
		C Costa	3	4											5	T Haas	77	77
	Q	A Martín	6	6												G Raoux	64	62
		A Ilie	3	4				Q	A Martín	65	7	61
		G Raoux	6	6					G Raoux	77	5	77
	4	B Black	3	3																		5	T Haas	4	6	6
	8	D Hrbatý	6	6																		2	F Mantilla	6	3	3
		F Squillari	2	4				8	D Hrbatý	77	7
		F Meligeni	6	7					F Meligeni	62	5
	WC	A Hunt	1	5											8	D Hrbatý	6	5	3
		A Voinea	77	6											2	F Mantilla	2	7	6
	WC	J Courier	65	1					A Voinea	6	1	4
	Q	L Tieleman	610	2				2	F Mantilla	1	6	6
	2	F Mantilla	712	6

• ATP Singles draw
• ATP Singles Qualifying draw