Player data updated: 2026-10-17 16:37 UTC

Yvonne Vermaak

RSA Age 69 155 cm / 5'1" Plays: Right-Handed WTA Tour years active: 1973–1988

Yvonne Vermaak represented South Africa on the WTA Tour and reached a career high of No. 38. TennisDB's records show a singles record of 239–250 and 5 singles titles. Weekly WTA ranking coverage before 1984 is incomplete outside audited No. 1 and year-end Top 10 anchors.

Peak singles rank

38 (Oct 1, 1984)

Elo peak

1893 (86th percentile)

Singles record

239–250 (48.9%)

Singles titles

Prize money

$497,124

Records cover recorded main-draw singles results in TennisDB's WTA event archive, including credited walkovers; qualifying is shown separately below.

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WTA Matches full match log →

Yvonne Vermaak's recent, live, and scheduled WTA matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Heather Ludloff #84	4-6 0-6	L	H2H	Match data	Feb 11, 1988*	R32	Dallas	WTA 250	Hard
Arantxa Sanchez-Vicario #97	3-6 3-6	L	H2H	Match data	Apr 15, 1987*	R64	Amelia Island	WTA 250	Clay
Sandra Cecchini #94	1-6 5-7	L	H2H	Match data	Apr 8, 1987*	R64	Hilton Head	WTA 250	Clay
Stephanie Rehe #19	0-6 2-6	L	H2H	Match data	Feb 25, 1987*	R64	Key Biscayne	WTA 250	Hard
Wendy Turnbull #16	6-4 6-4	W	H2H	Match data	Feb 24, 1987*	R128	Key Biscayne	WTA 250	Hard

Rivals all rivalries →

Yvonne Vermaak's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Martina Navratilova	0	14	14	Jan 25, 1985	H2H
Chris Evert	0	11	11	Feb 3, 1983	H2H
Virginia Ruzici	3	6	9	Jun 29, 1983	H2H
Wendy Turnbull	1	6	7	Feb 24, 1987	H2H
Dianne Fromholtz	2	5	7	Jun 25, 1986	H2H

Singles Titles (5)

Yvonne Vermaak singles titles by season and category
Season	Age	Singles titles	GS	WTA 1000 including documented historical predecessor categories	WTA 500 including documented historical predecessor categories	WTA 250 including documented historical predecessor categories	WTA Finals	Tournaments
1976	19	1	—	—	—	1	—	Johannesburg Transvaal Chps
1977	20	1	—	—	—	1	—	Beckenham
1983	26	2	—	—	—	2	—	Palm Springs, Salt Lake City
1984	27	1	—	—	—	1	—	Salt Lake City
Total		5	—	—	—	5	—

Asterisked totals include editions mapped from documented historical predecessor categories. Mapping details.

Career Results

Yvonne Vermaak career results by season
Season	Age	W	L	M	Win %	Start Rank	End Rank
1973	16	0	2	2	0.0%	—	—
1974	17	1	2	3	33.3%	—	—
1975	18	15	12	27	55.6%	—	—
1976	19	8	10	18	44.4%	—	—
1977	20	20	14	34	58.8%	—	—
1978	21	29	23	52	55.8%	—	—
1979	22	15	23	38	39.5%	—	—
1980	23	19	19	38	50.0%	—	—
1981	24	19	28	47	40.4%	—	—
1982	25	36	27	63	57.1%	—	—
1983	26	33	26	59	55.9%	—	—
1984	27	29	28	57	50.9%	40	41
1985	28	8	21	29	27.6%	41	41
1986	29	6	11	17	35.3%	104	104
1987	30	1	3	4	25.0%	104	201
1988	31	0	1	1	0.0%	200	287
Career		239	250	489	48.9%	—	—

Career Results by Surface

Yvonne Vermaak career results by season and 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 %
1973	16	0	2	2	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	0	2	2	0.0%
1974	17	1	2	3	33.3%	—	—	—	—	—	—	—	—	—	—	—	—	1	2	3	33.3%
1975	18	4	3	7	57.1%	7	4	11	63.6%	3	4	7	42.9%	—	—	—	—	15	12	27	55.6%
1976	19	1	1	2	50.0%	7	6	13	53.8%	0	2	2	0.0%	0	1	1	0.0%	8	10	18	44.4%
1977	20	3	2	5	60.0%	6	7	13	46.2%	8	2	10	80.0%	3	3	6	50.0%	20	14	34	58.8%
1978	21	13	7	20	65.0%	2	2	4	50.0%	8	4	12	66.7%	6	10	16	37.5%	29	23	52	55.8%
1979	22	4	6	10	40.0%	4	4	8	50.0%	5	4	9	55.6%	2	9	11	18.2%	15	23	38	39.5%
1980	23	2	5	7	28.6%	9	5	14	64.3%	4	4	8	50.0%	4	5	9	44.4%	19	19	38	50.0%
1981	24	7	9	16	43.8%	11	9	20	55.0%	0	1	1	0.0%	1	9	10	10.0%	19	28	47	40.4%
1982	25	4	4	8	50.0%	13	7	20	65.0%	9	6	15	60.0%	10	10	20	50.0%	36	27	63	57.1%
1983	26	14	4	18	77.8%	7	8	15	46.7%	8	5	13	61.5%	4	9	13	30.8%	33	26	59	55.9%
1984	27	12	7	19	63.2%	7	8	15	46.7%	8	6	14	57.1%	2	7	9	22.2%	29	28	57	50.9%
1985	28	5	8	13	38.5%	1	4	5	20.0%	1	3	4	25.0%	1	6	7	14.3%	8	21	29	27.6%
1986	29	1	2	3	33.3%	4	6	10	40.0%	1	3	4	25.0%	—	—	—	—	6	11	17	35.3%
1987	30	1	1	2	50.0%	0	2	2	0.0%	—	—	—	—	—	—	—	—	1	3	4	25.0%
1988	31	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	0	1	1	0.0%
Career	—	72	64	136	52.9%	78	72	150	52.0%	55	44	99	55.6%	33	69	102	32.4%	239	250	489	48.9%

Career Results by Opponent Rank

Yvonne Vermaak career results by season and 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 %
1984	27	1	7	8	12.5%	2	5	7	28.6%	8	7	15	53.3%	1	1	2	50.0%	12	20	32	37.5%
1985	28	0	1	1	0.0%	2	1	3	66.7%	1	5	6	16.7%	0	1	1	0.0%	3	8	11	27.3%
1986	29	0	1	1	0.0%	1	2	3	33.3%	0	3	3	0.0%	1	1	2	50.0%	2	7	9	22.2%
1987	30	0	0	—	—	1	1	2	50.0%	0	2	2	0.0%	0	0	—	—	1	3	4	25.0%
1988	31	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
Career		1	9	10	10.0%	6	9	15	40.0%	9	18	27	33.3%	2	3	5	40.0%	18	39	57	31.6%

Opponent ranking data available for 57/489 (11.7%) of Yvonne Vermaak's WTA main draw matches.

Advanced Stats

Yvonne Vermaak advanced statistics by season
Season	Age	Elo	P+	Serve+	Return+	PD	TPW%	Hard Elo	Clay Elo	Grass Elo	Set Win %	Set Margin	Dec. Set	Tiebreak	Pressure+	Schedule
1973	16	1496	101.8	—	—	—	—	—	—	—	20.0%	-3.20	0–1	—	—	-0.39
1974	17	1489	99.2	—	—	—	—	+43	—	—	42.9%	-0.71	0–1	—	—	+0.69
1975	18	1599	120.1	—	—	—	—	+53	-2	-47	57.1%	+0.46	3–6 (33%)	3–0 (100%)	100.2	+2.39
1976	19	1607	119.9	—	—	—	—	-10	+39	—	48.8%	+0.09	2–5 (29%)	1–3 (25%)	—	+0.98
1977	20	1766	138.3	—	—	—	—	-80	-80	-75	58.1%	+0.41	3–3 (50%)	6–5 (55%)	102.5	+0.26
1978	21	1794	135.9	—	—	—	—	+3	-135	-32	52.6%	+0.33	8–6 (57%)	2–6 (25%)	99.2	+2.39
1979	22	1781	155.4	—	—	—	—	-43	-75	+23	40.5%	-0.50	4–4 (50%)	1–2 (33%)	99.0	-4.02
1980	23	1735	137.1	—	—	—	—	-93	+40	+57	51.2%	+0.13	2–4 (33%)	4–3 (57%)	99.6	-4.68
1981	24	1720	144.0	—	—	—	—	-67	+97	—	43.1%	-0.39	4–6 (40%)	1–5 (17%)	97.0	-2.77
1982	25	1821	143.1	—	—	—	—	-78	+69	-9	55.2%	+0.06	11–10 (52%)	9–10 (47%)	99.9	-3.19
1983	26	1755	138.2	—	—	—	—	+8	+105	+98	55.4%	+0.20	10–11 (48%)	7–3 (70%)	100.1	+1.15
1984	27	1801	135.0	—	—	—	—	-65	-14	+95	53.1%	+0.15	5–11 (31%)	7–8 (47%)	94.0	-0.61
1985	28	1605	125.4	—	—	—	—	+12	+115	+210	37.7%	-0.97	1–10 (9%)	0–1	—	-0.70
1986	29	1566	105.2	—	—	—	—	+20	+85	+195	36.8%	-0.87	2–2 (50%)	0–1	—	0.00
1987	30	1559	108.1	—	—	—	—	—	—	—	25.0%	-2.38	—	—	—	-0.56
1988	31	1542	94.0	—	—	—	—	—	—	—	0.0%	-4.00	—	—	—	+0.11
Career		1893	142.0	—	—	—	—	-34	+34	+34	50.0%	-0.06	55–80 (41%)	41–47 (47%)	93.2	-1.83

Tournament Results by Category

Grand Slams

Yvonne Vermaak Grand Slams results by season
Season	Age	AO	RG	W	USO	W-L Win %
1975	18	—	—	R128	—	0–1 (0%)
1976	19	—	R64	R128	—	0–2 (0%)
1977	20	—	R16	R32	R128	3–3 (50%)
1978	21	—	—	R32	R64	2–2 (50%)
1979	22	—	R64	R128	R64	0–3 (0%)
1980	23	—	R64	R128	—	0–2 (0%)
1981	24	—	R32	R64	R64	3–3 (50%)
1982	25	R64	R16	R32	R64	5–4 (56%)
1983	26	R64	R128	SF	R64	6–4 (60%)
1984	27	R64	R64	R32	R32	5–4 (56%)
1985	28	—	—	R64	R128	1–2 (33%)
1986	29	—	R128	R128	R128	0–3 (0%)
W-L		0–3 (0%)	8–9 (47%)	12–12 (50%)	5–9 (36%)	25–33 (43%)

WTA 500

Yvonne Vermaak WTA 500 results by season
Season	Age	BRI	DLB	NAP	SDG	WAS	AME	BER	CAN	CAR	CHA	HIL	LOS	ORL	SYD	W-L Win %
1977	20	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	0–1 (0%)
1978	21	—	—	—	—	R32	—	—	—	—	—	—	QF	—	—	2–2 (50%)
1979	22	—	—	—	—	R32	—	R16	—	—	—	—	—	—	—	1–2 (33%)
1980	23	—	—	—	R16	—	—	—	R64	R32	—	—	—	—	—	1–3 (25%)
1981	24	—	—	—	QF	—	—	R32	R32	—	—	—	—	—	—	4–3 (57%)
1982	25	R32	—	—	—	—	—	R16	R64	—	—	—	QF	—	QF	8–5 (62%)
1983	26	—	—	—	—	R32	—	R32	R64	—	—	—	—	—	R64	1–4 (20%)
1984	27	R32	—	R16	SF	R16	R64	—	R64	—	—	R64	—	R32	QF	10–9 (53%)
1985	28	—	R64	—	—	R16	R64	—	—	—	—	R64	—	R16	—	3–5 (38%)
1986	29	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	0–1 (0%)
W-L		2–2 (50%)	1–1 (50%)	2–1 (67%)	6–3 (67%)	2–5 (29%)	0–2 (0%)	5–4 (56%)	1–5 (17%)	0–1 (0%)	0–1 (0%)	0–2 (0%)	4–3 (57%)	1–2 (33%)	6–3 (67%)	30–35 (46%)

WTA 250

Yvonne Vermaak WTA 250 results by season
Season	Age	ATL	CIN	DAL	EAS	HAM	HKG	HOU	KIT	MEL	MIA	NAP	ITA	VIE	AME	ATL	AUS	BEC	BIR	BLO	BOC	BOI	BOS	BOU	BRI	CAN	CHA	CHI	CHI	DEE	DEN	DET	DUR	POR	GIN	GRO	GUI	HAM	HAR	HER	HIL	HOL	HON	JOH	KAN	KEY	LAS	LUG	MAH	MAR	MIN	MON	NEW	NOR	OAK	ORL	PAL	PAL	PER	PHI	PHO	PIT	POR	POR	PRI	RIC	SAL	SAN	SAN	SEA	SEA	SOU	STU	SUR	SUT	TAL	TAM	ZUR	W-L Win %
1973	16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	0–2 (0%)
1974	17	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	1–2 (33%)
1975	18	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	R32	—	—	—	—	—	R16	—	—	—	—	R16	—	—	—	SF	—	—	R32	R64	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	SF	—	—	—	—	—	—	—	—	R16	—	R32	R64	—	—	—	15–11 (58%)
1976	19	—	—	—	R64	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	W	—	—	—	—	—	—	—	—	—	F	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	R32	—	—	SF	R32	—	—	8–8 (50%)
1977	20	—	—	R32	—	R16	—	—	—	—	—	R16	R32	—	—	—	—	W	—	—	—	—	—	—	—	QF	R32	—	R16	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	SF	—	—	—	—	—	—	17–10 (63%)
1978	21	R16	—	R32	R32	—	—	QF	—	—	—	R32	—	—	—	—	—	SF	—	—	—	—	R16	—	—	QF	—	R16	R16	—	—	R32	—	—	—	—	—	—	—	—	—	R32	—	—	R32	—	—	—	R16	—	—	SF	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	F	—	—	R16	—	R16	—	—	—	—	—	25–19 (57%)
1979	22	R32	—	R64	R64	—	—	R32	—	—	—	—	R16	QF	—	—	—	SF	—	—	—	—	—	—	—	—	—	R16	R16	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	R32	—	R32	—	—	—	R16	—	—	—	—	—	R32	—	—	—	—	R32	—	—	—	—	R32	SF	—	—	—	—	R16	—	14–18 (44%)
1980	23	—	—	R16	R32	—	—	—	—	—	—	R32	—	—	SF	—	—	R32	—	—	—	—	R16	—	—	—	—	—	R16	—	—	R32	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	R32	—	R64	—	—	R16	—	—	—	—	—	—	R16	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	18–14 (56%)
1981	24	R32	R32	R32	—	—	—	—	QF	—	—	R64	—	—	R32	—	—	—	—	—	—	QF	R32	—	—	—	—	R64	—	R32	—	R32	—	—	—	—	—	—	—	—	R16	—	—	—	R32	—	—	R32	R32	—	R32	—	—	—	—	QF	—	—	R32	—	—	—	—	—	—	R32	—	—	—	—	—	QF	—	—	—	—	R32	—	12–22 (35%)
1982	25	QF	R32	R16	R16	—	R32	R16	—	—	—	—	—	—	R64	—	—	—	R16	—	—	—	QF	—	—	—	—	R32	—	R16	—	R16	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	SF	—	—	—	—	—	—	R16	—	—	—	QF	R16	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	23–18 (56%)
1983	26	—	—	R16	R32	—	—	R32	—	—	—	SF	—	—	R32	—	—	—	QF	—	—	—	R16	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	R32	—	R64	—	SF	—	—	—	—	R32	R64	R64	—	—	—	—	R32	QF	R16	W	R16	—	—	—	—	—	—	R32	W	—	—	—	—	—	—	—	—	—	—	—	26–18 (59%)
1984	27	—	—	—	R64	—	—	—	—	—	R16	R32	—	—	—	—	—	—	R16	—	—	—	R32	—	R32	—	—	R32	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	R32	—	R64	—	QF	—	—	R32	—	—	—	—	W	—	—	—	—	R16	—	—	—	—	—	R32	14–15 (48%)
1985	28	—	—	—	R64	—	—	—	—	R32	—	—	—	—	—	—	R16	—	R64	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	QF	—	—	—	—	R32	—	—	—	—	—	R16	—	—	—	R64	—	—	R32	—	R32	—	—	—	—	—	—	—	—	—	R32	—	R32	—	—	R32	—	—	—	—	—	—	—	—	4–14 (22%)
1986	29	—	—	—	R64	—	—	R32	—	—	—	R16	—	—	R16	—	—	—	R32	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	6–7 (46%)
1987	30	—	—	—	—	—	—	—	—	—	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R64	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1–3 (25%)
1988	31	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0–1 (0%)
W-L		3–4 (43%)	0–2 (0%)	4–8 (33%)	5–9 (36%)	1–1 (50%)	0–1 (0%)	2–5 (29%)	2–1 (67%)	0–1 (0%)	1–1 (50%)	8–7 (53%)	2–3 (40%)	2–1 (67%)	7–6 (54%)	0–1 (0%)	1–1 (50%)	16–4 (80%)	7–5 (58%)	1–1 (50%)	1–1 (50%)	1–2 (33%)	5–6 (45%)	3–2 (60%)	0–1 (0%)	4–2 (67%)	0–1 (0%)	2–6 (25%)	6–5 (55%)	1–2 (33%)	0–1 (0%)	4–5 (44%)	1–1 (50%)	1–1 (50%)	1–1 (50%)	1–0 (100%)	0–1 (0%)	2–1 (67%)	0–1 (0%)	0–1 (0%)	6–5 (55%)	0–2 (0%)	2–1 (67%)	1–0 (100%)	0–2 (0%)	3–2 (60%)	0–1 (0%)	5–3 (62%)	2–5 (29%)	0–2 (0%)	0–2 (0%)	4–2 (67%)	1–2 (33%)	4–2 (67%)	2–5 (29%)	3–2 (60%)	2–2 (50%)	5–0 (100%)	10–5 (67%)	2–2 (50%)	0–1 (0%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	0–1 (0%)	1–4 (20%)	10–1 (91%)	4–1 (80%)	1–1 (50%)	0–1 (0%)	2–3 (40%)	11–9 (55%)	1–1 (50%)	1–1 (50%)	4–1 (80%)	0–1 (0%)	1–2 (33%)	0–1 (0%)	184–182 (50%)

Results show the best round reached per tournament and season.

WTA Ranking History full ranking history →

Career high

Career-high date

Oct 1, 1984

First Top 100

Jan 2, 1984

First Top 50

Jan 2, 1984

First Top 20

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First Top 10

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Ranking History Matrix

Yvonne Vermaak ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1984	27	41	46	52	56	49	48	54	52	46	39	39	41
1985	28	—	41	—	—	—	—	—	—	—	—	—	—
1986	29	—	—	—	—	—	—	—	—	—	—	—	104
1987	30	100	95	84	118	164	200	202	204	204	198	198	201
1988	31	204	182	271	294	300	308	309	294	285	283	285	287
1989	32	276	276	323	327	331	330	355	364	409	392	402	411
1990	33	414	410	—	597	596	565	558	—	—	—	—	—

Data coverage: Weekly WTA ranking snapshots are unavailable before 1984. Audited official No. 1 change dates and year-end Top 10 ranks are included, but weekly counts and ranks outside those anchors remain incomplete.

Similar Players

Other WTA players with comparable peak level, era, career record, and career scale.

Yvonne Vermaak's most statistically similar WTA players
Player	Country	Peak ranking	Peak Elo	M	W	L	Win %	Prize money	Titles	Years	Rivalries	Match log
Rene Uys	RSA	#39	1,719	96	47	49	49.0%	$84,568	2	1979–1985	Rivalries	Match log
Terry Holladay	USA	#39	1,945	378	179	199	47.4%	$241,905	1	1970–1987	Rivalries	Match log
Anne Hobbs	GBR	#35	1,834	336	172	164	51.2%	$510,610	8	1976–1989	Rivalries	Match log
Petra Huber	AUT	#37	1,737	137	58	79	42.3%	$161,735	2	1982–1989	Rivalries	Match log
Susan Mascarin	USA	#32	1,797	255	113	142	44.3%	$260,633	1	1979–1988	Rivalries	Match log
Marcella Mesker	NED	#31	1,792	237	103	134	43.5%	$337,812	1	1979–1988	Rivalries	Match log
Betsy Nagelsen	USA	#25	1,892	590	266	324	45.1%	$1,016,519	6	1972–1994	Rivalries	Match log
Beverly Mould	RSA	#46	1,667	78	32	46	41.0%	$96,335	0	1980–1985	Rivalries	Match log
Beth Herr	USA	#31	1,767	235	107	128	45.5%	$391,346	1	1981–1990	Rivalries	Match log
Linda Wild	USA	#23	1,815	281	135	146	48.0%	$1,237,931	5	1972–2000	Rivalries	Match log
Ann Henricksson	USA	#36	1,756	357	147	210	41.2%	$632,777	0	1980–1994	Rivalries	Match log
Patricia Medrado	BRA	#67	1,837	320	156	164	48.8%	$327,734	10	1975–1988	Rivalries	Match log

Frequently Asked Questions

How old is Yvonne Vermaak?: Yvonne Vermaak is 69 years old, born on December 18, 1956.
Which country does Yvonne Vermaak represent?: Yvonne Vermaak represents South Africa in TennisDB's WTA records.
How tall is Yvonne Vermaak?: Yvonne Vermaak is 155 cm / 5'1".
Is Yvonne Vermaak left-handed or right-handed?: Yvonne Vermaak plays right-handed.
How many Grand Slam singles titles has Yvonne Vermaak won?: Yvonne Vermaak has not won a Grand Slam singles title.
How many WTA 1000 titles has Yvonne Vermaak won?: TennisDB does not group any of Yvonne Vermaak's titles under the modern WTA 1000 category.
How many WTA titles has Yvonne Vermaak won?: Yvonne Vermaak has won 5 WTA singles titles across all categories. The most recent was Salt Lake City in 1984.
What is Yvonne Vermaak's highest WTA ranking?: Yvonne Vermaak's career-high WTA singles ranking is world No. 38, first achieved on October 1, 1984.
What is Yvonne Vermaak's career win-loss record?: Yvonne Vermaak has a career WTA singles record of 239 wins and 250 losses (48.9%).
How much career prize money has Yvonne Vermaak earned?: Yvonne Vermaak has earned at least $497,124 in career prize money from professional tennis.
Which seasons of Yvonne Vermaak's career appear in TennisDB?: Yvonne Vermaak appears in TennisDB's WTA main-tour match records from 1973 through 1988.
On which surface does Yvonne Vermaak have the highest recorded win rate?: Among surfaces with at least 20 recorded matches, Yvonne Vermaak's highest WTA main-draw win rate is on grass: 55.6% (55–44).
Who has Yvonne Vermaak faced most often?: Yvonne Vermaak's most frequent opponent is Martina Navratilova, with a head-to-head record of 0–14 across 14 meetings.