Men's singles
1999 Japan Open Tennis Championships
Champion	Nicolas Kiefer[1]
Runner-up	Wayne Ferreira
Score	7–6(7–5), 7–5
Draw	56 (7 Q )
Seeds	16

The 1999 Japan Open Tennis Championships was a tennis tournament played on outdoor hard courts at the Ariake Coliseum in Tokyo, Japan that was part of the International Series Gold of the 1999 ATP Tour. The tournament was held from April 12 through April 18, 1999.

Seeds

Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.

Draw

Finals

	Semifinals							Final[1]
	8	Jonas Björkman	6	1	4
	5	Nicolas Kiefer	4	6	6
								5	Nicolas Kiefer	7	7
								7	Wayne Ferreira	6	5
	4	Thomas Johansson	3	2
	7	Wayne Ferreira	6	6

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
								1	R Krajicek	3	1
		J van Lottum	6	6					J van Lottum	1	0r
		N Escudé	2	4											1	R Krajicek	6	6
		C Mamiit	7	6											16	D Prinosil	4	4
		B MacPhie	6	2					C Mamiit	2	3
	16	D Prinosil	6	6				16	D Prinosil	6	6
		M Damm	1	3																		1	R Krajicek	6	5	1
	9	M Chang	7	6	7																	8	J Björkman	3	7	6
		M Hill	6	7	6			9	M Chang	3	4
		J Knippschild	6	7					J Knippschild	6	6
		B Steven	2	5												J Knippschild	7	4	4
		L Tieleman	6	7											8	J Björkman	6	6	6
		M Kohlmann	3	6					L Tieleman	3	3
								8	J Björkman	6	6

Section 2

	First round							Second round							Third round							Quarterfinals
								3	T Enqvist	7	6
		R Štěpánek	7	6					R Štěpánek	6	4
		J Tarango	5	4											3	T Enqvist	6	6
		D Nestor	4	6	6											D Nestor	2	2
		C Vinck	6	3	3				D Nestor	6	6
		M Tillström	7	6					M Tillström	2	2
	13	J Krošlák	6	4																		3	T Enqvist	7	5	4
		M Sell	7	2	6																	5	N Kiefer	6	7	6
	11	M Woodforde	6	6	3				M Sell	6	6	6
		G Motomura	6	6					G Motomura	7	;4	3
		S Iwabuchi	2	4												M Sell	6	3	2
		P Srichaphan	6	7											5	N Kiefer	3	6	6
		V Santopadre	3	6					P Srichaphan	2	3
								5	N Kiefer	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
								6	B Black	3	5
		S Lareau	6	6	6				S Lareau	6	7
		T Suzuki	7	3	2											S Lareau	2	7	7
		O Gross	6	6											12	S Schalken	6	6	6
		Y Yamamoto	4	4					O Gross	4	2
	12	S Schalken	6	6				12	S Schalken	6	6
		W Black	4	1																			S Lareau	1	4
	14	G Pozzi	6	6																		4	T Johansson	6	6
		R Wassen	2	3				14	G Pozzi	6	4	6
		P Goldstein	7	6					P Goldstein	4	6	4
		H Dreekmann	5	4											14	G Pozzi	4	6	4
		H Kaneko	6	6											4	T Johansson	6	3	6
		M Knowles	3	4					H Kaneko	3	3
								4	T Johansson	6	6

Section 4

	First round							Second round							Third round							Quarterfinals
								7	W Ferreira	7	6
		D van Scheppingen	6	6					D van Scheppingen	6	3
		O Stanoytchev	2	1											7	W Ferreira	6	6
		L Burgsmüller	6	3	6											L Burgsmüller	3	4
		P Wessels	3	6	2				L Burgsmüller	6	7
	10	D Vacek	6	6				10	D Vacek	2	5
		G Grant	1	1																		7	W Ferreira	3	6	6
		K Carlsen	6	6																			K Carlsen	6	2	3
	15	R Schüttler	2	4					K Carlsen	6	6
		W Arthurs	6	6					W Arthurs	4	2
		M Rodríguez	4	3												K Carlsen	7	6
		B Karbacher	6	7												B Karbacher	5	2
		S Campbell	2	6					B Karbacher	7	6
									D DiLucia	6	2

References