Men's singles
1985 Japan Open Tennis Championships
Champion	Scott Davis
Runner-up	Jimmy Arias
Score	6–1, 7–6(7–3)
Draw	64 (5WC/8Q/2LL)
Seeds	16

David Pate was the defending champion, but lost in the third round to Jonathan Canter.

Scott Davis won the title by defeating Jimmy Arias 6–1, 7–6^(7–3) in the final.^[1][2]

Seeds

Draw

Finals

	Quarterfinals							Semifinals							Final
	14	Glenn Michibata	6	6
	5	Greg Holmes	4	4
								14	Glenn Michibata	7	3	4
								4	Jimmy Arias	5	6	6
	4	Jimmy Arias	6	6
	11	Matt Anger	3	3
															4	Jimmy Arias	1	63
															2	Scott Davis	6	77
		Johan Carlsson	1	7	6
	12	Jonathan Canter	6	6	1
									Johan Carlsson	4	1
								2	Scott Davis	6	6
	6	Sammy Giammalva Jr.	4	2
	2	Scott Davis	6	6

Top half

Section 1

	First round							Second round							Third round							Quarterfinals
	1	T Mayotte	6	6
		S Menon	1	3				1	T Mayotte	6	6	6
	Q	C Stansbury	6	6				Q	C Stansbury	7	0	1
		S Shiraishi	2	0											1	T Mayotte	6	6	4
	Q	Shoichi Tatsuno	4	1											14	G Michibata	7	4	6
		B Dickinson	6	6					B Dickinson	1	3
		S Guy	2	4				14	G Michibata	6	6
	14	G Michibata	6	6																		14	G Michibata	6	6
	10	H van Boeckel	6	4																		5	G Holmes	4	4
		C Dunk	7	6					C Dunk	6	2	6
		Minoru Ueda	7	3	3				C Campbell	4	6	3
		C Campbell	5	6	6											C Dunk	2	4
		G Lemon	6	6											5	G Holmes	6	6
	Q	S Matsuoka	3	4					G Lemon	2	1
		S Denton	7	6	5			5	G Holmes	6	6
	5	G Holmes	5	7	7

Section 2

	First round							Second round							Third round							Quarterfinals
	4	J Arias	6	6
		R Brown	2	4				4	J Arias	7	6
		R Van't Hof	6	3	6				J Manset	6	1
		J Manset	4	6	7										4	J Arias	3	7	6
	WC	T Tsuchihashi	6	1	6										15	R Simpson	6	6	3
		H Shirato	2	6	3			WC	T Tsuchihashi	2	3
		E Takeuchi	2	4				15	R Simpson	6	6
	15	R Simpson	6	6																		4	J Arias	6	6
	11	M Anger	6	6																		11	M Anger	3	3
		T Mmoh	2	0				11	M Anger	6	7
		M Wooldridge	4	4					T Fukui	3	5
		T Fukui	6	6											11	M Anger	6	6
		L Courteau	6	6											8	R Seguso	4	4
	LL	Kenzo Ukon	2	1					L Courteau	2	1
	Q	T Sakai	2	2				8	R Seguso	6	6
	8	R Seguso	6	6

Bottom half

Section 3

	First round							Second round							Third round							Quarterfinals
	7/WC	V Gerulaitis	4	1
		J Carlsson	6	6					J Carlsson	6	6
		D Utzinger	7	3	2				H Rittersbacher	1	4
		H Rittersbacher	6	6	6											J Carlsson	6	6
		S Vasudevan	6	6											9	K Flach	2	1
	WC	Kazuya Morita	1	0					S Vasudevan	6	4
		J Bailey	1	6	4			9	K Flach	7	6
	9	K Flach	6	3	6																		J Carlsson	1	7	6
	12	J Canter	6	6																		12	J Canter	6	6	1
	Q	Shōichi Horiuchi	3	0				12	J Canter	6	6
		K Richter	3	7	6				K Richter	1	4
		H McDadi	6	5	3										12	J Canter	7	6
		S McCain	6	6											3	D Pate	5	2
	LL	Kiyotaka Tachibana	2	4					S McCain	3	7	4
		A Kohlberg	6	2	3			3	D Pate	6	5	6
	3	D Pate	4	6	6

Section 4

	First round							Second round							Third round							Quarterfinals
	6	S Giammalva Jr.	7	6
		E Van't Hof	5	3				6	S Giammalva Jr.	7	6
		R Nixon	5	2					G Donnelly	6	3
		G Donnelly	7	6											6	S Giammalva Jr.	6	7
		R Rudeen	6	6												R Rudeen	4	6
		D Saltz	3	0					R Rudeen	6	6	6
	WC	T Yonezawa	3	7	4			16	M Oosting	7	2	4
	16	M Oosting	6	5	6																	6	S Giammalva Jr.	4	2
	13	V Van Patten	6	6																		2	S Davis	6	6
	WC	H Nakano	2	3				13	V Van Patten	7	7
	Q	Takeshi Murakami	0	2					A El-Mehelmy	6	5
		A El-Mehelmy	6	6											13	V Van Patten	4	4
	Q	S Nishio	4	4											2	S Davis	6	6
	Q	Hajime Nihonmatsu	6	6				Q	Hajime Nihonmatsu	0	0
		C Strode	3	2				2	S Davis	6	6
	2	S Davis	6	6

References

External links

• Official results archive (ATP)
• Official results archive (ITF)