T. Okker is 82 years old, born on February 22, 1944.

How many Grand Slams has T. Okker won?

T. Okker has not won a Grand Slam title.

How many Masters 1000 titles has T. Okker won?

T. Okker has won 2 Masters 1000 titles. The most recent was Toronto in 1973.

How many ATP titles has T. Okker won?

T. Okker has won 37 ATP singles titles across all categories. The most recent other title was Tel Aviv in 1979.

What is T. Okker's highest ATP ranking?

T. Okker's career-high ATP singles ranking is world No. 3, first achieved on March 4, 1974.

What is T. Okker's career win-loss record?

T. Okker has a career ATP singles record of 672 wins and 279 losses (70.7%).

How much career prize money has T. Okker earned?

T. Okker has earned at least $1,257,200 in career prize money from professional tennis.

When did T. Okker play professional tennis?

T. Okker turned professional in 1968 and was active through 1981.

What is T. Okker's best surface?

T. Okker's best surface is grass court with a 75.3% win rate (110W-36L).

Who is T. Okker's biggest rival?

T. Okker's most frequent opponent is A. Ashe, with a head-to-head record of 10–17 across 27 meetings.

T. Okker

NED Age 82 177 cm / 5'10" Plays: Right-Handed Pro 1968–1981

Peak ranking

3 (Mar 4, 1974)

Elo peak

2198 (98.0%ile)

Career record

672–279 (70.7%)

Career titles

Prize money

$1,257,200

Recent ATP Matches full match log →

Date	Tournament	Category	Round	Surface	Opponent	Score	Result	H2H	Match
Nov 4, 1981*	Stockholm	ATP 250	R64	Hard	Tom Gullikson	3-6 2-6	L	—	Match data
Oct 16, 1981*	Basel	ATP 250	R16	Hard	Andres Gomez #44	4-6 6-7	L	H2H	Match data
Oct 15, 1981*	Basel	ATP 250	R32	Hard	S. Sorensen #203	7-5 6-2	W	H2H	Match data
Oct 8, 1981*	Tel Aviv	ATP 250	R32	Hard	I. Nastase #79	6-4 4-6 6-7	L	H2H	Match data
Jul 9, 1981*	Gstaad	ATP 250	R32	Clay	C. Kirmayr #42	2-6 0-6	L	H2H	Match data

Rivals full rivalries list →

Opponent	W	L	M	Last Played	H2H
A. Ashe	10	17	27	Nov 2, 1975	H2H
R. Laver	3	22	25	May 18, 1974	H2H
R. Taylor	17	8	25	Mar 24, 1973	H2H
T. Roche	16	8	24	Feb 21, 1977	H2H
J. Newcombe	11	11	22	May 13, 1974	H2H

Titles (37)

Season	Age	Titles	GS	M1000	500	250	Finals	Tournaments
1968	24	7	—	1	—	6	—	Barranquilla , Dublin , Johannesburg 1 , Kingston , Saltsjoebaden , Scheveningen , Rome
1969	25	8	—	—	—	8	—	Amsterdam , Brussels , Hilversum , Japanese Championships , Milwaukee , Monte Carlo , Newport , Paris
1970	26	5	—	—	—	5	—	Atlanta , Brussels , Hamburg , Hilversum , Leicester
1971	27	2	—	—	—	2	—	Louisville Wct , Quebec Wct
1972	28	1	—	—	—	1	—	Chicago Wct
1973	29	7	—	1	—	6	—	Chicago , Hilversum , London , Madrid , Seattle , Washington Wct , Toronto
1974	30	3	—	—	—	3	—	Acapulco , Rotterdam , Toronto Wct
1975	31	2	—	—	—	2	—	Nottingham , Paris Indoor
1977	33	1	—	—	—	1	—	Richmond Wct
1979	35	1	—	—	—	1	—	Tel Aviv
Total		37	—	2	—	35	—

Career Results

Season	Age	W	L	M	Win %	Start Rank	End Rank
1968	24	89	23	112	79.5%	—	—
1969	25	86	25	111	77.5%	—	—
1970	26	59	27	86	68.6%	—	—
1971	27	74	31	105	70.5%	—	—
1972	28	69	31	100	69.0%	—	—
1973	29	91	23	114	79.8%	9	4
1974	30	65	19	84	77.4%	3	6
1975	31	39	13	52	75.0%	6	11
1976	32	33	18	51	64.7%	9	23
1977	33	15	13	28	53.6%	23	31
1978	34	20	20	40	50.0%	31	50
1979	35	20	18	38	52.6%	51	56
1980	36	11	13	24	45.8%	56	107
1981	37	1	5	6	16.7%	107	107
Career		672	279	951	70.7%	—	—

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 %
1968	24	26	9	35	74.3%	35	7	42	83.3%	20	2	22	90.9%	8	5	13	61.5%	89	23	112	79.5%
1969	25	19	9	28	67.9%	36	6	42	85.7%	14	4	18	77.8%	17	6	23	73.9%	86	25	111	77.5%
1970	26	15	6	21	71.4%	16	3	19	84.2%	21	12	33	63.6%	7	6	13	53.8%	59	27	86	68.6%
1971	27	12	7	19	63.2%	24	10	34	70.6%	13	4	17	76.5%	25	10	35	71.4%	74	31	105	70.5%
1972	28	22	10	32	68.8%	10	5	15	66.7%	2	1	3	66.7%	35	15	50	70.0%	69	31	100	69.0%
1973	29	16	5	21	76.2%	39	8	47	83.0%	4	2	6	66.7%	32	8	40	80.0%	91	23	114	79.8%
1974	30	18	6	24	75.0%	17	6	23	73.9%	6	2	8	75.0%	24	5	29	82.8%	65	19	84	77.4%
1975	31	13	3	16	81.3%	1	3	4	25.0%	10	1	11	90.9%	15	6	21	71.4%	39	13	52	75.0%
1976	32	6	3	9	66.7%	7	5	12	58.3%	5	2	7	71.4%	15	8	23	65.2%	33	18	51	64.7%
1977	33	4	4	8	50.0%	0	1	1	0.0%	3	1	4	75.0%	8	7	15	53.3%	15	13	28	53.6%
1978	34	3	4	7	42.9%	9	8	17	52.9%	6	2	8	75.0%	2	6	8	25.0%	20	20	40	50.0%
1979	35	11	6	17	64.7%	3	5	8	37.5%	4	1	5	80.0%	2	6	8	25.0%	20	18	38	52.6%
1980	36	5	4	9	55.6%	2	5	7	28.6%	2	1	3	66.7%	2	3	5	40.0%	11	13	24	45.8%
1981	37	1	3	4	25.0%	0	1	1	0.0%	0	1	1	0.0%	—	—	—	—	1	5	6	16.7%
Career	—	171	79	250	68.4%	199	73	272	73.2%	110	36	146	75.3%	192	91	283	67.8%	672	279	951	70.7%

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	29	14	5	19	73.7%	8	1	9	88.9%	14	0	14	100.0%	6	1	7	85.7%	42	7	49	85.7%
1974	30	7	11	18	38.9%	13	3	16	81.2%	16	3	19	84.2%	16	0	16	100.0%	52	17	69	75.4%
1975	31	2	5	7	28.6%	4	2	6	66.7%	22	5	27	81.5%	8	0	8	100.0%	36	12	48	75.0%
1976	32	1	5	6	16.7%	2	5	7	28.6%	16	6	22	72.7%	6	1	7	85.7%	25	17	42	59.5%
1977	33	2	3	5	40.0%	4	7	11	36.4%	4	2	6	66.7%	1	1	2	50.0%	11	13	24	45.8%
1978	34	1	10	11	9.1%	4	1	5	80.0%	8	8	16	50.0%	4	0	4	100.0%	17	19	36	47.2%
1979	35	1	4	5	20.0%	3	1	4	75.0%	5	8	13	38.5%	8	1	9	88.9%	17	14	31	54.8%
1980	36	0	2	2	0.0%	1	2	3	33.3%	5	5	10	50.0%	3	2	5	60.0%	9	11	20	45.0%
1981	37	0	0	—	—	0	0	—	—	0	4	4	0.0%	1	0	1	100.0%	1	4	5	20.0%
Career		28	45	73	38.4%	39	22	61	63.9%	90	41	131	68.7%	53	6	59	89.8%	210	114	324	64.8%

Opponent ranking data available for 324/951 (34.1%) of T. Okker's ATP main draw matches.

Advanced Stats

Season	Age	ELO	ELO %	Hard %	Clay %	Grass %	Set Win %	Set Margin	SoS %	Deep Run %	Dec. Set W%	TB W	TB L	TB W%
1968	24	1797	99	99	99	100	72.4%	+1.85	71	72	64	0	0	—
1969	25	2009	100	99	100	98	73.1%	+1.78	88	78	64	2	0	—
1970	26	1948	99	95	100	98	66.5%	+1.32	73	52	42	7	4	64
1971	27	2008	99	98	98	98	65.3%	+1.30	92	74	58	15	22	41
1972	28	2042	99	98	96	98	63.5%	+1.16	90	78	69	24	19	56
1973	29	2166	100	99	99	97	70.9%	+1.53	90	67	77	20	10	67
1974	30	2062	99	99	99	97	68.8%	+1.04	91	77	88	23	8	74
1975	31	2068	99	99	96	97	70.1%	+1.61	82	60	69	5	2	71
1976	32	1957	96	95	95	97	61.5%	+0.80	82	67	64	5	4	56
1977	33	1931	96	95	—	99	52.1%	+0.04	92	29	60	2	1	67
1978	34	1880	94	90	92	99	51.9%	+0.07	91	20	50	5	5	50
1979	35	1773	89	87	88	98	51.0%	-0.10	67	21	62	8	8	50
1980	36	1715	88	87	86	98	47.5%	-0.08	65	23	38	5	2	71
1981	37	1651	79	82	—	—	26.7%	-1.35	59	0	—	0	3	0
Career		1959	97	97	98	98	65.8%	+1.06	83	59	64	121	88	58

Tournament Results by Category

Results show best round reached per tournament per season.

Grand Slams

Season	Age	AO	RG	W	USO
1968	24	—	—	QF	F
1969	25	R64	SF	QF	R128
1970	26	QF	—	R64	R16
1971	27	SF	—	R16	SF
1972	28	—	—	—	R32
1973	29	—	QF	—	R16
1974	30	—	—	R16	R16
1975	31	—	—	QF	R64
1976	32	—	—	R32	R32
1977	33	—	—	R16	—
1978	34	—	R128	SF	R128
1979	35	—	—	QF	R128
1980	36	—	—	R32	R128
1981	37	—	—	R128	—

Masters 1000

Season	Age	CIN	ROM	MON	TOR
1968	24	—	W	—	—
1969	25	—	SF	—	—
1971	27	—	SF	F	—
1973	29	—	SF	—	W
1974	30	—	—	—	SF
1978	34	—	—	R16	—
1979	35	R32	—	R16	—
1980	36	R64	—	—	—

ATP 250

Season	Age	ACO	ATL	AUC	BAR	BAS	DAL	GST	HAM	HKG	HOU	MAD	MC	MEL	MIA	MUN	NAP	NWP	PAR	QUE	ROM	ROT	STO	STU	TKY	VIE	WAS	ABE	ALA	AMS	AUS	AVI	BAL	BAN	BAR	BER	BER	BIR	BIR	BLO	BOL	BOS	BOS	BOU	BRE	BRI	BRU	CAI	CAP	CAR	CHA	CHA	CHI	CHI	CLE	COL	COL	COL	COP	CUR	DEN	DEN	DUB	DUR	DUR	ESS	FOR	FOR	FOR	GOT	HEL	HIL	HIL	HOL	JAP	JOH	JOH	JOH	JOH	KIN	KIN	KIN	KIN	LAG	LAK	LAS	LAS	LEI	LON	LON	LON	LOS	LOS	LOS	LOU	LOU	LUG	MAC	MEM	MER	MEX	MID	MIL	MIL	MON	NEW	NEW	NOT	PAL	PHI	PHI	POR	QUE	RAN	RIC	RIC	SAL	SAL	SAN	SCH	SEA	ST.	SYD	TAI	TEH	TEH	TEL	TOR	TOR	TUC	TUS	VAN	VAN	WEM
1968	24	—	—	—	—	—	—	F	R16	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	W	—	F	—	—	F	—	—	—	—	—	—	—	—	R16	QF	—	—	—	—	—	—	—	—	—	F	—	—	W	—	QF	—	—	—	—	—	QF	—	SF	—	—	—	—	W	—	RR	RR	RR	W	—	—	—	—	—	SF	—	—	R32	—	—	—	—	F	R16	—	—	—	—	—	—	—	—	QF	—	—	—	QF	R16	—	—	—	—	R32	W	—	W	—	—	—	—	—	—	—	—	—	—	—	—	—	—
1969	25	—	SF	—	—	—	—	F	F	—	—	—	W	—	—	—	—	W	W	QF	—	—	—	—	—	F	—	—	—	W	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	W	—	—	—	—	—	R16	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	SF	—	—	—	—	W	SF	W	F	—	—	—	—	—	—	—	—	—	R16	—	—	—	SF	—	R32	R16	—	—	—	—	—	—	—	—	—	—	W	—	R16	—	—	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	F	—	—	—	SF
1970	26	—	W	F	—	—	—	F	W	—	—	—	—	QF	QF	—	—	—	R32	R32	—	—	—	—	—	—	—	—	—	—	RR	—	—	—	—	—	—	—	—	—	—	R32	—	QF	—	R32	W	—	—	—	RR	—	—	—	—	—	—	—	—	—	—	—	SF	R16	—	—	—	—	—	—	—	—	W	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	W	—	—	—	R32	—	—	—	—	—	—	—	—	—	SF	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	R16	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	SF	—	SF
1971	27	—	—	—	R32	—	SF	F	—	—	—	—	F	—	QF	—	—	—	R32	—	—	—	QF	—	—	—	R16	—	—	—	—	—	—	—	—	SF	—	—	—	—	QF	—	QF	—	—	QF	R32	—	—	—	F	—	—	SF	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	W	—	—	—	—	—	SF	—	—	—	—	—	—	—	—	QF	—	W	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	F	—
1972	28	—	—	—	—	—	QF	—	—	—	SF	—	—	—	R32	—	—	—	—	—	SF	F	F	—	QF	—	R16	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	F	—	QF	—	—	—	—	—	—	QF	—	W	R16	—	—	—	—	—	—	SF	—	—	—	QF	—	—	SF	SF	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	SF	—	QF	—	QF	—	R16	—	—	—	—	SF	—	—	—	—	—	SF	—	R32	—	R32	—	—	—	—	—	—	QF	—	—	—	—	—	—	SF	—	—	—	QF	—
1973	29	—	—	—	R32	—	—	QF	—	—	SF	W	—	—	—	—	—	—	SF	R32	—	—	SF	—	—	—	W	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	W	QF	R32	—	R16	—	R16	—	—	R16	—	—	—	—	—	—	—	—	—	—	W	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	W	—	QF	F	—	—	R16	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	W	—	—	—	—	—	—	—	—	—	—	—	R16	—
1974	30	W	—	—	R16	—	QF	—	—	—	—	QF	R32	—	SF	R32	—	—	—	—	—	W	F	—	—	—	F	—	—	—	—	—	—	—	—	—	—	—	—	—	—	F	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	QF	SF	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	W	—	SF	—	—	—
1975	31	—	—	—	R32	—	—	—	—	QF	—	—	R32	—	—	—	—	—	W	—	—	F	F	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	F	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	W	—	—	R32	—	—	—	—	SF	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
1976	32	—	—	—	—	SF	—	—	—	—	—	R16	—	—	—	—	R16	—	QF	—	QF	SF	SF	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SF	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	SF	—	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF
1977	33	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	R16	R16	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	R64	—	—	—	W	—	—	—	—	—	—	—	—	—	—	—	—	SF	—	—	—	—	—	QF
1978	34	—	—	—	—	—	—	QF	R64	—	R16	—	—	—	—	R32	—	—	—	R32	—	R32	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	F	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R64	—	R32	—	—	—	R32	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	R16
1979	35	—	—	—	—	—	—	QF	R64	—	R32	—	—	—	—	R16	—	—	—	—	—	R32	R64	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	R64	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	W	—	—	—	—	—	—	R32
1980	36	—	—	—	—	SF	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	R16	—	—	—	R32	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	QF	—	—	—	—	—	—	—
1981	37	—	—	—	—	R16	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—

ATP Finals

Season	Age	MAS
1973	29	F

ATP Ranking History full ranking history →

Career high

Career-high date

Mar 4, 1974

First top 100

Aug 27, 1973

First top 50

Aug 27, 1973

First top 20

Aug 27, 1973

First top 10

Aug 27, 1973

Ranking History Matrix

Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1973	29	—	—	—	—	—	—	—	9	8	6	4	4
1974	30	—	—	3	3	3	4	3	5	5	—	5	6
1975	31	6	—	8	9	9	6	—	—	—	—	—	11
1976	32	—	—	—	—	—	11	—	—	—	—	—	23
1977	33	27	23	23	28	31	31	31	31	30	27	29	29
1978	34	27	72	72	81	97	—	53	43	50	49	46	50
1979	35	50	31	34	35	34	32	46	43	42	46	55	56
1980	36	51	65	64	58	58	60	86	90	—	—	—	107
1982	38	438	—	—	—	—	—	—	—	—	—	—	—

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
J. Connors	USA	1	2,410	8	109	1,556	1,262	294	81.1%	1969-1996	Match log
Ivan Lendl	USA	1	2,424	8	94	1,280	1,051	229	82.1%	1978-1994	Match log
G. Vilas	ARG	2	2,338	4	63	1,180	898	282	76.1%	1968-1992	Match log
I. Nastase	ROU	1	2,260	2	64	1,190	859	331	72.2%	1968-1985	Match log
John McEnroe	USA	1	2,496	7	76	1,022	833	189	81.5%	1976-1994	Match log
A. Ashe	USA	2	2,255	3	49	1,058	800	258	75.6%	1968-1979	Match log
M. Orantes	ESP	2	2,229	1	38	982	696	286	70.9%	1968-1984	Match log
B. Gottfried	USA	3	2,237	0	25	1,017	695	322	68.3%	1970-1984	Match log
B. Borg	SWE	1	2,497	11	61	751	608	143	81.0%	1971-1993	Match log
E. Dibbs	USA	5	2,168	0	22	871	607	264	69.7%	1970-1984	Match log
R. Tanner	USA	4	2,158	1	17	893	595	298	66.6%	1969-1985	Match log
H. Solomon	USA	5	2,161	0	22	912	578	334	63.4%	1969-1991	Match log

Frequently Asked Questions

How old is T. Okker?: T. Okker is 82 years old, born on February 22, 1944.
Which country is T. Okker from?: T. Okker is from Netherlands.
How tall is T. Okker?: T. Okker is 177 cm / 5'10".
Is T. Okker left-handed or right-handed?: T. Okker plays right-handed.
How many Grand Slams has T. Okker won?: T. Okker has not won a Grand Slam title.
How many Masters 1000 titles has T. Okker won?: T. Okker has won 2 Masters 1000 titles. The most recent was Toronto in 1973.
How many ATP titles has T. Okker won?: T. Okker has won 37 ATP singles titles across all categories. The most recent other title was Tel Aviv in 1979.
What is T. Okker's highest ATP ranking?: T. Okker's career-high ATP singles ranking is world No. 3, first achieved on March 4, 1974.
What is T. Okker's career win-loss record?: T. Okker has a career ATP singles record of 672 wins and 279 losses (70.7%).
How much career prize money has T. Okker earned?: T. Okker has earned at least $1,257,200 in career prize money from professional tennis.
When did T. Okker play professional tennis?: T. Okker turned professional in 1968 and was active through 1981.
What is T. Okker's best surface?: T. Okker's best surface is grass court with a 75.3% win rate (110W-36L).
Who is T. Okker's biggest rival?: T. Okker's most frequent opponent is A. Ashe, with a head-to-head record of 10–17 across 27 meetings.