Player data updated: 2026-09-01 02:16 UTC

Mary Lou Piatek

USA WTA Tour years active: 1978–1993

Mary Lou Piatek represented the United States on the WTA Tour. In TennisDB's records, Mary Lou Piatek finished with a career record of 153–206 and 2 singles titles. Weekly WTA ranking coverage before 1984 is incomplete outside audited No. 1 and year-end Top 10 anchors.

Peak ranking

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Elo peak

1932 (88th percentile)

Career record

153–206 (42.6%)

Career titles

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 →

Mary Lou Piatek's recent, live, and scheduled WTA matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Andrea Temesvari #69	7-6 5-7 3-6	L	H2H	Match data	Feb 22, 1993	R64	Indian Wells Open	WTA 500	Hard
Linda Wild #43	2-6 2-6	L	H2H	Match data	Feb 19, 1993*	R16	Oklahoma	WTA 250	Hard
Mercedes Paz #98	6-2 6-3	W	H2H	Match data	Feb 18, 1993*	R32	Oklahoma	WTA 250	Hard
Linda Wild #55	0-6 3-6	L	H2H	Match data	Nov 12, 1992*	R32	Indianapolis	WTA 250	Hard
Carrie Cunningham #72	4-6 6-2 5-7	L	H2H	Match data	Sep 2, 1992*	R128	US Open	Grand Slam	Hard

Rivals all rivalries →

Mary Lou Piatek's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Sylvia Hanika	5	5	10	Mar 31, 1990	H2H
Betsy Nagelsen	8	1	9	Sep 26, 1986	H2H
Anne Smith	1	7	8	Feb 14, 1991	H2H
Martina Navratilova	0	8	8	Dec 2, 1984	H2H
Wendy White	4	2	6	Feb 22, 1990	H2H

Titles (2)

Mary Lou Piatek titles by season and category
Season	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
1981	1	—	—	—	1	—	Richmond
1984	1	—	—	—	1	—	Denver
Total	2	—	—	—	2	—

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

Career Results

Mary Lou Piatek career results by season
Season	W	L	M	Win %	Start Rank	End Rank
1978	0	1	1	0.0%	—	—
1979	3	5	8	37.5%	—	—
1980	16	12	28	57.1%	—	—
1981	30	22	52	57.7%	—	—
1982	18	21	39	46.2%	—	—
1983	12	20	32	37.5%	—	—
1984	18	20	38	47.4%	—	—
1985	14	18	32	43.8%	—	—
1986	8	15	23	34.8%	—	—
1987	6	12	18	33.3%	—	—
1988	6	16	22	27.3%	—	—
1989	7	15	22	31.8%	—	—
1990	8	11	19	42.1%	—	—
1991	5	8	13	38.5%	—	—
1992	1	8	9	11.1%	—	—
1993	1	2	3	33.3%	—	—
Career	153	206	359	42.6%	—	—

Career Results by Surface

Mary Lou Piatek career results by season and surface
Season	Hard				Clay				Grass				Carpet				Total
Season	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1978	—	—	—	—	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%
1979	1	1	2	50.0%	0	1	1	0.0%	—	—	—	—	2	3	5	40.0%	3	5	8	37.5%
1980	5	3	8	62.5%	3	1	4	75.0%	0	2	2	0.0%	8	6	14	57.1%	16	12	28	57.1%
1981	15	5	20	75.0%	6	4	10	60.0%	4	6	10	40.0%	5	7	12	41.7%	30	22	52	57.7%
1982	4	5	9	44.4%	0	3	3	0.0%	1	2	3	33.3%	13	11	24	54.2%	18	21	39	46.2%
1983	5	6	11	45.5%	1	4	5	20.0%	0	2	2	0.0%	6	8	14	42.9%	12	20	32	37.5%
1984	9	8	17	52.9%	0	1	1	0.0%	5	6	11	45.5%	4	5	9	44.4%	18	20	38	47.4%
1985	7	11	18	38.9%	2	1	3	66.7%	1	2	3	33.3%	4	4	8	50.0%	14	18	32	43.8%
1986	5	5	10	50.0%	0	2	2	0.0%	1	2	3	33.3%	2	6	8	25.0%	8	15	23	34.8%
1987	3	5	8	37.5%	0	2	2	0.0%	0	2	2	0.0%	3	3	6	50.0%	6	12	18	33.3%
1988	4	9	13	30.8%	1	4	5	20.0%	0	1	1	0.0%	1	2	3	33.3%	6	16	22	27.3%
1989	7	9	16	43.8%	0	3	3	0.0%	0	2	2	0.0%	0	1	1	0.0%	7	15	22	31.8%
1990	4	5	9	44.4%	3	3	6	50.0%	0	1	1	0.0%	1	2	3	33.3%	8	11	19	42.1%
1991	5	5	10	50.0%	0	2	2	0.0%	—	—	—	—	0	1	1	0.0%	5	8	13	38.5%
1992	0	6	6	0.0%	1	1	2	50.0%	0	1	1	0.0%	—	—	—	—	1	8	9	11.1%
1993	1	2	3	33.3%	—	—	—	—	—	—	—	—	—	—	—	—	1	2	3	33.3%
Career	75	85	160	46.9%	17	32	49	34.7%	12	29	41	29.3%	49	60	109	45.0%	153	206	359	42.6%

Career Results by Opponent Rank

Mary Lou Piatek career results by season and opponent rank
Season	1-10				11-30				31-100				100+				Total
Season	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
1984	0	4	4	0.0%	3	4	7	42.9%	6	6	12	50.0%	3	1	4	75.0%	12	15	27	44.4%
1985	0	3	3	0.0%	0	2	2	0.0%	1	1	2	50.0%	0	2	2	0.0%	1	8	9	11.1%
1986	0	1	1	0.0%	0	3	3	0.0%	4	7	11	36.4%	0	0	—	—	4	11	15	26.7%
1987	0	1	1	0.0%	1	2	3	33.3%	1	4	5	20.0%	2	1	3	66.7%	4	8	12	33.3%
1988	0	2	2	0.0%	1	3	4	25.0%	4	5	9	44.4%	0	3	3	0.0%	5	13	18	27.8%
1989	0	2	2	0.0%	1	8	9	11.1%	1	2	3	33.3%	3	0	3	100.0%	5	12	17	29.4%
1990	0	3	3	0.0%	1	1	2	50.0%	3	2	5	60.0%	1	1	2	50.0%	5	7	12	41.7%
1991	0	0	—	—	2	2	4	50.0%	2	4	6	33.3%	1	1	2	50.0%	5	7	12	41.7%
1992	0	2	2	0.0%	0	0	—	—	1	3	4	25.0%	0	2	2	0.0%	1	7	8	12.5%
1993	0	0	—	—	0	0	—	—	1	2	3	33.3%	0	0	—	—	1	2	3	33.3%
Career	0	18	18	0.0%	9	25	34	26.5%	24	36	60	40.0%	10	11	21	47.6%	43	90	133	32.3%

Opponent ranking data available for 133/359 (37.0%) of Mary Lou Piatek's WTA main draw matches.

Advanced Stats

Mary Lou Piatek advanced statistics by season
Season	Elo	P+	Serve+	Return+	PD	TPW%	Hard Elo	Clay Elo	Grass Elo	Set Win %	Set Margin	Dec. Set	Tiebreak	Pressure+	Schedule
1978	1499	106.8	—	—	—	—	—	—	—	0.0%	-3.50	—	—	—	-0.12
1979	1547	118.2	—	—	—	—	+97	—	—	42.1%	-0.89	1–2 (33%)	0–1	—	+0.14
1980	1735	137.7	—	—	—	—	+8	-158	—	55.7%	+0.51	3–2 (60%)	1–0	—	-0.18
1981	1869	146.1	—	—	—	—	+63	-192	-295	56.7%	+0.48	8–10 (44%)	6–5 (55%)	101.1	-3.04
1982	1792	141.6	—	—	—	—	+56	-194	-210	47.1%	-0.08	4–5 (44%)	2–3 (40%)	96.7	-0.75
1983	1721	143.7	—	—	—	—	+53	-86	—	41.3%	-0.43	4–7 (36%)	0–5 (0%)	91.3	-3.81
1984	1703	128.4	—	—	—	—	-13	—	-69	47.7%	-0.47	5–5 (50%)	4–3 (57%)	101.0	-0.69
1985	1678	113.6	—	—	—	—	-29	-65	-67	43.1%	-0.61	5–3 (63%)	1–3 (25%)	100.7	+2.10
1986	1618	111.0	—	—	—	—	+10	—	-24	38.5%	-0.67	2–4 (33%)	0–3 (0%)	95.5	+1.60
1987	1594	117.2	—	—	—	—	+33	—	—	35.7%	-0.78	3–3 (50%)	0–1	—	+0.29
1988	1542	116.2	—	—	—	—	+33	-43	—	30.8%	-1.31	4–4 (50%)	0–2	—	-0.55
1989	1592	121.3	—	—	—	—	+35	-116	—	31.4%	-1.65	5–2 (71%)	4–2 (67%)	107.3	-2.88
1990	1611	125.3	—	—	—	—	+8	-85	—	43.9%	-0.63	1–2 (33%)	0–2	—	-0.44
1991	1630	119.4	—	—	—	—	+17	—	—	41.4%	-0.31	1–2 (33%)	0–2	—	-0.69
1992	1560	101.4	—	—	—	—	-16	—	—	23.8%	-2.00	0–3 (0%)	0–2	—	-0.39
1993	1555	103.2	—	—	—	—	-22	—	—	42.9%	-0.71	0–1	1–0	—	-0.16
Career	1932	136.4	—	—	—	—	+26	-124	-154	43.9%	-0.44	46–55 (46%)	19–34 (36%)	92.3	-2.67

Tournament Results by Category

Grand Slams

Mary Lou Piatek Grand Slams results by season
Season	AO	RG	W	USO	W-L Win %
1979	—	—	—	R32	1–1 (50%)
1980	—	—	R128	R64	1–2 (33%)
1981	R64	R32	R32	R128	4–4 (50%)
1982	—	R64	R64	R128	0–3 (0%)
1983	—	R128	R128	R64	1–3 (25%)
1984	R32	—	R64	R128	2–3 (40%)
1985	—	—	R128	R64	1–2 (33%)
1986	—	—	R64	R128	1–2 (33%)
1987	—	—	R128	R128	0–2 (0%)
1988	—	—	R128	R128	0–2 (0%)
1989	—	—	R128	R128	0–2 (0%)
1990	—	—	R128	R128	0–2 (0%)
1992	R128	—	R128	R128	0–3 (0%)
W-L	1–3 (25%)	2–3 (40%)	4–12 (25%)	4–13 (24%)	11–31 (26%)

WTA 1000

Mary Lou Piatek WTA 1000 results by season
Season	BOC	HIL	KEY	W-L Win %
1990	—	R32	—	1–1 (50%)
1991	R64	R64	R64	1–3 (25%)
1992	—	R32	R128	1–2 (33%)
W-L	0–1 (0%)	2–3 (40%)	1–2 (33%)	3–6 (33%)

WTA 500

Mary Lou Piatek WTA 500 results by season
Season	BRI	DLB	HOU	IW	SDG	WAS	AME	BER	BOC	CHI	HIL	KEY	LOS	OAK	ORL	SYD	WOR	W-L Win %
1981	—	—	—	—	QF	—	—	—	—	—	—	—	R32	—	—	R64	—	2–3 (40%)
1982	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	1–1 (50%)
1983	—	—	—	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	0–1 (0%)
1984	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	R32	—	1–3 (25%)
1985	—	R128	—	—	SF	—	—	—	—	—	—	—	—	—	—	—	—	3–2 (60%)
1988	—	—	—	—	—	R32	R32	—	—	—	R64	R128	—	—	—	—	R16	2–5 (29%)
1989	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	2–1 (67%)
1990	—	—	—	—	—	—	—	—	R64	—	—	—	—	R16	—	—	R32	1–3 (25%)
1991	—	—	R32	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	0–2 (0%)
1992	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	0–1 (0%)
1993	—	—	—	R64	—	—	—	—	—	—	—	—	—	—	—	—	—	0–1 (0%)
W-L	0–1 (0%)	0–1 (0%)	0–1 (0%)	0–2 (0%)	5–2 (71%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	3–3 (50%)	1–1 (50%)	0–1 (0%)	1–2 (33%)	1–2 (33%)	12–23 (34%)

WTA 250

Mary Lou Piatek WTA 250 results by season
Season	ATL	CIN	DAL	EAS	HOU	NAP	NWP	TKY	WAS	AME	BIR	BOC	BOS	BRE	CHI	DEE	DEN	DET	EAS	FOR	GIN	HAR	HER	HIL	KAN	KEY	LIT	MAH	MAN	MAR	NAS	NEW	OAK	OKL	ORL	PAL	PER	PHO	PRI	RIC	SAL	SAN	SAN	SCO	SEA	SOU	SUR	TAM	TUC	TUL	WIC	WOR	W-L Win %
1978	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0–1 (0%)
1979	—	—	R32	—	—	R32	—	—	—	—	—	—	R32	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	2–4 (33%)
1980	—	—	—	R64	—	QF	—	—	—	—	—	—	R16	—	R16	R16	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	F	—	—	—	—	R32	—	—	SF	R16	—	—	—	15–10 (60%)
1981	F	R16	QF	R32	R16	R32	—	—	—	R32	—	—	—	—	R32	R16	—	R16	—	—	—	—	—	R16	R32	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	W	—	—	—	—	—	—	R64	SF	—	—	—	—	24–15 (62%)
1982	SF	R16	QF	R32	QF	—	—	R16	R32	R32	—	—	R16	—	R16	R16	—	QF	—	—	—	—	—	—	SF	—	—	R64	—	—	—	—	—	—	R32	—	—	—	—	QF	—	—	—	—	—	—	—	R32	—	—	—	—	17–17 (50%)
1983	R16	—	R32	R64	R32	—	—	—	SF	R32	—	—	R32	—	R32	R16	—	—	—	—	—	R32	—	—	—	—	—	R32	—	R64	—	—	R16	—	—	R16	—	—	—	QF	—	—	—	—	—	—	—	R32	—	—	—	—	11–16 (41%)
1984	—	—	—	R32	R16	—	—	—	—	—	R32	—	R16	—	R32	—	W	—	R16	R32	—	—	QF	—	—	—	—	R64	R32	—	R16	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	R16	—	—	—	—	15–14 (52%)
1985	—	—	R32	—	QF	QF	—	—	—	—	R32	—	—	—	R16	—	QF	—	—	R32	R16	—	R32	—	—	R64	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	R16	—	—	—	—	10–13 (43%)
1986	—	—	R32	R64	R32	R16	—	—	—	—	—	R128	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	R32	—	—	—	—	—	R32	—	—	—	R16	—	—	—	—	—	—	SF	R32	R64	7–12 (37%)
1987	—	—	—	R64	R32	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	R64	R16	—	—	—	—	R16	—	R16	—	—	—	R64	—	—	—	—	—	—	—	—	—	R32	—	—	R16	—	6–10 (38%)
1988	—	—	QF	—	R32	R16	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	R32	—	—	—	—	—	R32	—	—	—	R16	—	—	—	—	—	R32	—	—	—	—	4–9 (31%)
1989	—	—	—	—	R32	—	R32	—	R16	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	R64	—	R128	—	R32	—	—	R16	—	R16	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	R32	—	—	—	R32	5–12 (29%)
1990	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	R16	—	—	—	R16	—	—	QF	—	6–5 (55%)
1991	—	—	—	—	—	QF	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	4–3 (57%)
1992	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0–2 (0%)
1993	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1–1 (50%)
W-L	8–3 (73%)	2–2 (50%)	8–7 (53%)	3–7 (30%)	5–10 (33%)	10–8 (56%)	0–1 (0%)	0–1 (0%)	4–3 (57%)	2–3 (40%)	2–2 (50%)	1–2 (33%)	3–5 (38%)	2–1 (67%)	6–10 (38%)	4–4 (50%)	7–1 (88%)	4–3 (57%)	1–1 (50%)	0–2 (0%)	0–1 (0%)	0–1 (0%)	2–2 (50%)	2–2 (50%)	2–2 (50%)	1–3 (25%)	2–2 (50%)	1–4 (20%)	0–1 (0%)	0–1 (0%)	2–3 (40%)	3–4 (43%)	2–3 (40%)	3–5 (38%)	0–1 (0%)	1–1 (50%)	1–1 (50%)	0–2 (0%)	0–1 (0%)	13–3 (81%)	0–1 (0%)	2–2 (50%)	1–1 (50%)	1–1 (50%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	9–10 (47%)	1–1 (50%)	3–1 (75%)	3–3 (50%)	0–2 (0%)	127–144 (47%)

Results show the best round reached per tournament and season.

WTA Ranking History full ranking history →

Career high

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Career-high date

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First Top 100

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First Top 50

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First Top 20

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First Top 10

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Ranking History Matrix

No ranking history available.

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.

Frequently Asked Questions

Which country does Mary Lou Piatek represent?: Mary Lou Piatek represents United States in TennisDB's WTA records.
How many Grand Slams has Mary Lou Piatek won?: Mary Lou Piatek has not won a Grand Slam title.
How many WTA 1000 titles has Mary Lou Piatek won?: TennisDB does not group any of Mary Lou Piatek's titles under the modern WTA 1000 category.
How many WTA titles has Mary Lou Piatek won?: Mary Lou Piatek has won 2 WTA singles titles across all categories. The most recent was Denver in 1984.
What is Mary Lou Piatek's career win-loss record?: Mary Lou Piatek has a career WTA singles record of 153 wins and 206 losses (42.6%).
Which seasons of Mary Lou Piatek's career appear in TennisDB?: Mary Lou Piatek appears in TennisDB's WTA main-tour match records from 1978 through 1993.
On which surface does Mary Lou Piatek have the highest recorded win rate?: Among surfaces with at least 20 recorded matches, Mary Lou Piatek's highest WTA main-draw win rate is on hard: 46.9% (75–85).
Who has Mary Lou Piatek faced most often?: Mary Lou Piatek's most frequent opponent is Sylvia Hanika, with a head-to-head record of 5–5 across 10 meetings.