K. Hirai is 76 years old, born on March 19, 1950.

How many Grand Slams has K. Hirai won?

K. Hirai has not won a Grand Slam title.

How many Masters 1000 titles has K. Hirai won?

K. Hirai has not won a Masters 1000 title.

What is K. Hirai's highest ATP ranking?

K. Hirai's career-high ATP singles ranking is world No. 180, first achieved on July 29, 1974.

What is K. Hirai's career win-loss record?

K. Hirai has a career ATP singles record of 7 wins and 32 losses (17.9%).

How much career prize money has K. Hirai earned?

K. Hirai has earned at least $557 in career prize money from professional tennis.

When did K. Hirai play professional tennis?

K. Hirai turned professional in 1971 and was active through 1981.

Who is K. Hirai's biggest rival?

K. Hirai's most frequent opponent is T. Gorman, with a head-to-head record of 0–2 across 2 meetings.

K. Hirai

JPN Age 76 Plays: Right-Handed Pro 1971–1981

Peak ranking

180 (Jul 29, 1974)

Elo peak

1505 (4.2%ile)

Career record

7–32 (17.9%)

Career titles

Prize money

$557

Recent ATP Matches full match log →

Date	Tournament	Category	Round	Surface	Opponent	Score	Result	H2H	Match
Oct 21, 1981*	Tokyo Outdoor	ATP 250	R64	Clay	J. Bailey #232	4-6 2-6	L	H2H	Match data
Nov 16, 1978*	Taipei	ATP 250	R32	Carpet	H. Pfister #36	1-6 2-6	L	H2H	Match data
Oct 26, 1978*	Osaka	ATP 250	R32	Clay	T. Moor #62	2-6 7-5 4-6	L	H2H	Match data
Nov 2, 1977*	Tokyo Outdoor	ATP 250	R64	Clay	J. Whitlinger #127	0-6 6-7	L	H2H	Match data
Jun 8, 1977*	Nottingham	ATP 250	R64	Grass	D. Crealy #40	9-8 4-6 2-6	L	H2H	Match data

Rivals full rivalries list →

Opponent	L	M	Last Played	H2H
T. Gorman	2	2	Nov 3, 1976	H2H
J. Bailey	1	1	Oct 21, 1981	H2H
H. Pfister	1	1	Nov 16, 1978	H2H
T. Moor	1	1	Oct 26, 1978	H2H
J. Whitlinger	1	1	Nov 2, 1977	H2H

Career Results

Season	Age	W	L	M	Win %	Start Rank	End Rank
1971	21	1	7	8	12.5%	—	—
1972	22	2	3	5	40.0%	—	—
1973	23	1	5	6	16.7%	217	226
1974	24	1	4	5	20.0%	237	228
1975	25	0	4	4	0.0%	231	252
1976	26	2	4	6	33.3%	254	187
1977	27	0	2	2	0.0%	220	332
1978	28	0	2	2	0.0%	332	496
1981	31	0	1	1	0.0%	549	549
Career		7	32	39	17.9%	—	—

Career Results by Surface

Season	Age	Hard				Clay				Grass				Carpet				Total
Season	Age	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1971	21	1	4	5	20.0%	0	2	2	0.0%	0	1	1	0.0%	—	—	—	—	1	7	8	12.5%
1972	22	1	1	2	50.0%	0	1	1	0.0%	1	1	2	50.0%	—	—	—	—	2	3	5	40.0%
1973	23	0	2	2	0.0%	1	2	3	33.3%	0	1	1	0.0%	—	—	—	—	1	5	6	16.7%
1974	24	1	1	2	50.0%	0	1	1	0.0%	0	2	2	0.0%	—	—	—	—	1	4	5	20.0%
1975	25	—	—	—	—	0	2	2	0.0%	0	1	1	0.0%	0	1	1	0.0%	0	4	4	0.0%
1976	26	0	1	1	0.0%	1	2	3	33.3%	1	1	2	50.0%	—	—	—	—	2	4	6	33.3%
1977	27	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%	—	—	—	—	0	2	2	0.0%
1978	28	—	—	—	—	0	1	1	0.0%	—	—	—	—	0	1	1	0.0%	0	2	2	0.0%
1981	31	—	—	—	—	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
Career	—	3	9	12	25.0%	2	13	15	13.3%	2	8	10	20.0%	0	2	2	0.0%	7	32	39	17.9%

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 %
1973	23	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%	0	0	—	—	0	2	2	0.0%
1974	24	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%	0	3	3	0.0%
1975	25	0	1	1	0.0%	0	2	2	0.0%	0	0	—	—	0	0	—	—	0	3	3	0.0%
1976	26	0	0	—	—	0	1	1	0.0%	0	2	2	0.0%	1	1	2	50.0%	1	4	5	20.0%
1977	27	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%	0	2	2	0.0%
1978	28	0	0	—	—	0	0	—	—	0	2	2	0.0%	0	0	—	—	0	2	2	0.0%
1981	31	0	0	—	—	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%
Career		0	2	2	0.0%	0	4	4	0.0%	0	7	7	0.0%	1	4	5	20.0%	1	17	18	5.6%

Opponent ranking data available for 18/39 (46.2%) of K. Hirai's ATP main draw matches.

Advanced Stats

Season	Age	ELO	ELO %	Hard %	Clay %	Grass %	Set Win %	Set Margin	SoS %	Dec. Set W%	TB L	TB W%
1971	21	1444	9	17	—	—	11.1%	-2.21	38	—	2	—
1972	22	1466	22	—	—	—	45.5%	-0.13	63	—	0	—
1973	23	1459	18	—	22	—	31.3%	-1.08	87	—	1	—
1974	24	1439	12	—	—	—	33.3%	-1.53	33	—	1	—
1975	25	1413	4	—	—	—	10.0%	-2.88	90	—	1	—
1976	26	1438	10	—	14	—	35.7%	-0.61	38	—	1	—
1977	27	1421	7	—	—	—	20.0%	-2.59	22	—	1	—
1978	28	1413	3	—	—	—	20.0%	-2.92	80	—	0	—
1981	31	1400	2	—	—	—	0.0%	-3.00	2	—	0	—
Career		1439	11	15	16	36	25.8%	-1.68	55	12	7	0

Tournament Results by Category

Results show best round reached per tournament per season.

Grand Slams

Season	Age	AO	W	USO
1971	21	—	—	R128
1973	23	—	R128	—
1974	24	R64	—	—
1975	25	R64	—	—
1976	26	—	R64	—

Masters 1000

Season	Age	CIN
1971	21	R64

ATP 250

Season	Age	EAS	GST	NAP	TKY	BEC	COL	HIL	LOS	MAN	MER	NOT	OSA	SAC	SYD	TAI
1971	21	—	—	R64	—	—	—	R16	R64	—	R64	—	—	R64	—	—
1972	22	R64	R32	—	—	R64	—	R32	—	—	—	—	—	—	—	—
1973	23	—	R32	—	R32	—	—	—	—	R32	—	—	R32	—	—	—
1974	24	—	—	—	R32	—	—	R32	—	—	—	—	—	—	R64	—
1975	25	—	R32	—	R32	—	—	—	—	—	—	—	—	—	—	—
1976	26	—	R16	—	R64	—	R32	—	—	—	—	—	—	—	—	—
1977	27	—	—	—	R64	—	—	—	—	—	—	R64	—	—	—	—
1978	28	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	R32
1981	31	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—

ATP Ranking History full ranking history →

Career high

180

Career-high date

Jul 29, 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
1973	23	—	—	—	—	—	—	—	—	—	—	224	226
1974	24	—	—	237	230	233	226	180	187	190	—	194	228
1975	25	231	—	243	257	247	249	—	—	—	—	—	252
1976	26	—	—	—	—	—	254	—	—	—	—	—	187
1977	27	—	—	—	—	—	—	220	—	—	—	—	—
1978	28	322	—	—	—	—	—	429	—	—	—	—	496
1979	29	—	—	—	—	—	—	—	—	—	—	—	511
1983	33	743	—	—	—	—	—	—	—	—	—	—	—
1984	34	661	—	—	—	—	612	610	631	620	603	592	609
1985	35	604	619	630	628	648	—	—	—	—	—	—	—

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
K. Tanabe	JPN	669	1,576	0	0	37	11	26	29.7%	1971-1982	Match log
T. Fukui	JPN	177	1,521	0	0	36	10	26	27.8%	1977-1989	Match log
I. Watanabe	JPN	274	1,500	0	0	11	4	7	36.4%	1968-1974	Match log
D. Ralston	USA	115	1,954	0	6	293	157	136	53.6%	1968-1980	Match log
B. Bowrey	AUS	162	1,752	1	3	236	122	114	51.7%	1968-1975	Match log
J. Osborne	USA	211	1,817	0	0	239	118	121	49.4%	1968-1982	Match log
M. Santana	ESP	145	1,994	0	11	163	113	50	69.3%	1968-1978	Match log
E. Buchholz	USA	156	1,941	0	6	179	98	81	54.7%	1968-1978	Match log
M. Anderson	AUS	125	1,932	0	3	135	81	54	60.0%	1968-1981	Match log
M. Belkin	CAN	128	1,774	0	2	135	77	58	57.0%	1968-1975	Match log
J. Rouyer	FRA	133	1,747	0	0	138	69	69	50.0%	1968-1974	Match log
R. Barth	USA	107	1,736	0	0	202	64	138	31.7%	1968-1975	Match log

Frequently Asked Questions

How old is K. Hirai?: K. Hirai is 76 years old, born on March 19, 1950.
Which country is K. Hirai from?: K. Hirai is from Japan.
Is K. Hirai left-handed or right-handed?: K. Hirai plays right-handed.
How many Grand Slams has K. Hirai won?: K. Hirai has not won a Grand Slam title.
How many Masters 1000 titles has K. Hirai won?: K. Hirai has not won a Masters 1000 title.
What is K. Hirai's highest ATP ranking?: K. Hirai's career-high ATP singles ranking is world No. 180, first achieved on July 29, 1974.
What is K. Hirai's career win-loss record?: K. Hirai has a career ATP singles record of 7 wins and 32 losses (17.9%).
How much career prize money has K. Hirai earned?: K. Hirai has earned at least $557 in career prize money from professional tennis.
When did K. Hirai play professional tennis?: K. Hirai turned professional in 1971 and was active through 1981.
Who is K. Hirai's biggest rival?: K. Hirai's most frequent opponent is T. Gorman, with a head-to-head record of 0–2 across 2 meetings.