Singles
1981 Tokyo Indoor
Champion	Vincent Van Patten
Runner-up	Mark Edmondson
Score	6–2, 3–6, 6–3
Draw	32
Seeds	8

Jimmy Connors was the defending champion, but did not participate this year.

Unseeded Vincent Van Patten won the tournament, beating Mark Edmondson in the final, 6–2, 3–6, 6–3.

Seeds

Draw

Finals

	Semifinals							Final
	1	John McEnroe	3	5
		Vincent Van Patten	6	7
									Vincent Van Patten	6	3	6
									Mark Edmondson	2	6	3
		Mark Edmondson	77	6
		Heinz Günthardt	64	4

Top half

	First round							Second round							Quarterfinals							Semifinals
	1	J McEnroe	6	6
		J Sadri	2	2				1	J McEnroe	6	6
		T Fukui	6	6					T Fukui	3	2
		S Shiraishi	4	2											1	J McEnroe	6	6
		B Scanlon	6	6												B Scanlon	4	3
		R Cano	1	4					B Scanlon	6	4	6
		D Gitlin	2	77	5			LL	C Dunk	2	6	1
	LL	C Dunk	6	63	7																	1	J McEnroe	3	5
	3	J-L Clerc	6	6																			V Van Patten	6	7
		P McNamee	2	4				3	J-L Clerc	77	5	65
		V Van Patten	6	6					V Van Patten	64	7	77
		J Fitzgerald	2	4												V Van Patten	0	6	6
		C Lewis	6	7											5	V Gerulaitis	6	3	3
		T Moor	4	5					C Lewis	2	3
		J Bailey	4	7	1			5	V Gerulaitis	6	6
	5	V Gerulaitis	6	5	6

Bottom half

	First round							Second round							Quarterfinals							Semifinals
	6	W Fibak	77	3	6
		M Purcell	63	6	3			6	W Fibak	6	6
		V Amaya	3	6	67				P Dent	4	3
		P Dent	6	2	79										6	W Fibak	5	2
		To Gullikson	4	7	1											M Edmondson	7	6
		M Edmondson	6	5	6				M Edmondson	66	6	6
		B Manson	6	6					B Manson	78	4	4
	4	E Teltscher	3	3																			M Edmondson	77	6
	8	B Taróczy	6	3	4																		H Günthardt	64	4
		H Günthardt	4	6	6				H Günthardt	7	6
		R Frawley	6	3	4				P Rennert	5	3
		P Rennert	4	6	6											H Günthardt	77	77
		E Takeuchi	1	2												Ti Gullikson	63	62
		Ti Gullikson	6	6					Ti Gullikson	6	6
		R Krishnan	3	6	2			2	B Borg	3	1
	2	B Borg	6	4	6

External links

• Main draw