How old is Isao Watanabe?

Isao Watanabe is 84 years old, born on November 23, 1941.

Is Isao Watanabe left-handed or right-handed?

Isao Watanabe plays right-handed.

How many Grand Slams has Isao Watanabe won?

Isao Watanabe has not won a Grand Slam title.

How many Masters 1000 titles has Isao Watanabe won?

Isao Watanabe has not won a Masters 1000 title.

What is Isao Watanabe's highest ATP ranking?

Isao Watanabe's career-high ATP singles ranking is world No. 274, first achieved on December 23, 1974.

What is Isao Watanabe's career win-loss record?

Isao Watanabe has a career ATP singles record of 4 wins and 7 losses (36.4%).

When did Isao Watanabe play professional tennis?

Isao Watanabe turned professional in 1968 and was active through 1974.

Who is Isao Watanabe's biggest rival?

Isao Watanabe's most frequent opponent is Jurgen Fassbender, with a head-to-head record of 0–1 across 1 meeting.

Isao Watanabe

JPN Age 84 Plays: Right-Handed Pro 1968–1974

Peak ranking

274 (Dec 23, 1974)

Elo peak

1500 (3.4%ile)

Career record

4–7 (36.4%)

Career titles

Recent ATP Matches full match log →

Date	Tournament	Category	Round	Surface	Opponent	Score	Result	H2H	Match
Oct 16, 1974*	Tokyo	ATP 250	R32	Hard	Jurgen Fassbender #47	5-7 1-6	L	H2H	Match data
Oct 15, 1974*	Tokyo	ATP 250	R64	Hard	Ian Fletcher #82	(w/o)	W	H2H	Match data
Apr 11, 1974*	Tokyo Wct	ATP 250	R32	Clay	Tito Vazquez	7-5 2-6 1-6	L	—	Match data
Aug 15, 1968*	Hamburg	ATP 250	R64	Clay	Alex Kurucz	0-6 3-6 5-7	L	—	Match data
Jul 26, 1968*	Hilversum	ATP 250	R16	Clay	Jan Kodes	1-6 1-6	L	H2H	Match data

Rivals full rivalries list →

Opponent	W	L	M	Last Played	H2H
Jurgen Fassbender	0	1	1	Oct 16, 1974	H2H
Ian Fletcher	1	0	1	Oct 15, 1974	H2H
Tito Vazquez	0	1	1	Apr 11, 1974	—
Alex Kurucz	0	1	1	Aug 15, 1968	—
Jan Kodes	0	1	1	Jul 26, 1968	H2H

Career Results

Season	Age	W	L	M	Win %	Start Rank	End Rank
1968	26	3	5	8	37.5%	—	—
1974	32	1	2	3	33.3%	297	274
Career		4	7	11	36.4%	—	—

Career Results by Surface

Season	Age	Hard				Clay				Grass				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1968	26	—	—	—	—	2	4	6	33.3%	1	1	2	50.0%	3	5	8	37.5%
1974	32	1	1	2	50.0%	0	1	1	0.0%	—	—	—	—	1	2	3	33.3%
Career	—	1	1	2	50.0%	2	5	7	28.6%	1	1	2	50.0%	4	7	11	36.4%

Career Results by Opponent Rank

Season	Age	1-10				11-30				31-100				100+				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1974	32	0	0	—	—	0	0	—	—	1	1	2	50.0%	0	0	—	—	1	1	2	50.0%
Career		0	0	—	—	0	0	—	—	1	1	2	50.0%	0	0	—	—	1	1	2	50.0%

Opponent ranking data available for 2/11 (18.2%) of Isao Watanabe's ATP main draw matches.

Advanced Stats

Season	Age	ELO	ELO %	Hard %	Clay %	Grass %	Set Win %	Set Margin	SoS %	Dec. Set W%	TB W%
1968	26	1462	9	—	5	—	44.4%	-0.26	35	33	—
1974	32	1468	25	—	—	—	20.0%	-2.92	35	—	—
Career		1464	14	—	6	—	39.1%	-1.02	35	25	—

Tournament Results by Category

Results show best round reached per tournament per season.

Grand Slams

Season	Age	RG
1968	26	R128

ATP 250

Season	Age	GST	HAM	TKY	BRI	HIL
1968	26	R32	R64	—	R16	R16
1974	32	—	—	R32	—	—

ATP Ranking History full ranking history →

Career high

274

Career-high date

Dec 23, 1974

First top 100

—

First top 50

—

First top 20

—

First top 10

—

Ranking History Matrix

Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1974	32	—	—	—	—	—	—	—	—	—	—	297	274
1975	33	281	—	306	324	333	330	—	—	—	—	—	—

Similar Players

Other ATP players ranked by a composite similarity score over country, era, and peak rank.

Player	Country	Peak Rank	Peak Elo	Grand Slams	Titles	M	W	L	Win %	Active Years	Match Log
Koji Watanabe	JPN	1,188	1,542	0	0	30	11	19	36.7%	1968-1972	Match log
Kiyoshi Tanabe	JPN	669	1,576	0	0	37	11	26	29.7%	1971-1982	Match log
Kenichi Hirai	JPN	180	1,505	0	0	39	7	32	17.9%	1971-1981	Match log
Dennis Ralston	USA	115	1,954	0	6	293	157	136	53.6%	1968-1980	Match log
Bill Bowrey	AUS	162	1,752	1	3	236	122	114	51.7%	1968-1975	Match log
Jim Osborne	USA	211	1,817	0	0	239	118	121	49.4%	1968-1982	Match log
Manuel Santana	ESP	145	1,994	0	11	163	113	50	69.3%	1968-1978	Match log
Earl Butch Buchholz	USA	156	1,941	0	6	179	98	81	54.7%	1968-1978	Match log
Mal Anderson	AUS	125	1,932	0	3	135	81	54	60.0%	1968-1981	Match log
Mike Belkin	CAN	128	1,774	0	2	135	77	58	57.0%	1968-1975	Match log
Jean Loup Rouyer	FRA	133	1,747	0	0	138	69	69	50.0%	1968-1974	Match log
Ray Keldie	AUS	113	1,622	0	0	170	64	106	37.6%	1968-1975	Match log

Frequently Asked Questions

How old is Isao Watanabe?: Isao Watanabe is 84 years old, born on November 23, 1941.
Which country is Isao Watanabe from?: Isao Watanabe is from Japan.
Is Isao Watanabe left-handed or right-handed?: Isao Watanabe plays right-handed.
How many Grand Slams has Isao Watanabe won?: Isao Watanabe has not won a Grand Slam title.
How many Masters 1000 titles has Isao Watanabe won?: Isao Watanabe has not won a Masters 1000 title.
What is Isao Watanabe's highest ATP ranking?: Isao Watanabe's career-high ATP singles ranking is world No. 274, first achieved on December 23, 1974.
What is Isao Watanabe's career win-loss record?: Isao Watanabe has a career ATP singles record of 4 wins and 7 losses (36.4%).
When did Isao Watanabe play professional tennis?: Isao Watanabe turned professional in 1968 and was active through 1974.
Who is Isao Watanabe's biggest rival?: Isao Watanabe's most frequent opponent is Jurgen Fassbender, with a head-to-head record of 0–1 across 1 meeting.