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

Jacek Niedzwiedzki

POL Died Oct 27, 2021 (age 70) Plays: Right-Handed ATP Tour years active: 1975–1977

Jacek Niedzwiedzki represented Poland on the ATP Tour and reached a career-high ranking of No. 172. In TennisDB's records, Jacek Niedzwiedzki finished with a career record of 7–8 and no singles titles.

Peak ranking

172 (Jul 4, 1977)

Elo peak

1559 (20th percentile)

Career record

7–8 (46.7%)

Career titles

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

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ATP Matches full match log →

Jacek Niedzwiedzki's recent, live, and scheduled ATP matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Jan Norback #161	5-7 2-6	L	H2H	Match data	Jan 4, 1978*	F	Zurich	ATP 250	Hard
Frank Gebert #85	3-6 6-1 6-3	W	H2H	Match data	Jan 3, 1978*	SF	Zurich	ATP 250	Hard
Jiri Granat	7-6 6-3	W	H2H	Match data	Jan 3, 1978*	QF	Zurich	ATP 250	Hard
M Borgener	3-6 7-5 6-3	W	—	Match data	Jan 2, 1978*	R16	Zurich	ATP 250	Hard
B Renault	6-2 6-3	W	—	Match data	Jan 1, 1978*	R32	Zurich	ATP 250	Hard

Rivals all rivalries →

Jacek Niedzwiedzki's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Pat Dupre	1	1	2	Nov 9, 1976	H2H
Jan Norback	0	1	1	Jan 4, 1978	H2H
Jiri Granat	1	0	1	Jan 3, 1978	H2H
Frank Gebert	1	0	1	Jan 3, 1978	H2H
M Borgener	1	0	1	Jan 2, 1978	—

Career Results

Jacek Niedzwiedzki career results by season
Season	Age	W	L	M	Win %	Start Rank	End Rank
1975	24	1	2	3	33.3%	265	238
1976	25	1	2	3	33.3%	—	—
1977	26	5	4	9	55.6%	172	172
Career		7	8	15	46.7%	—	—

Career Results by Surface

Jacek Niedzwiedzki 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 %
1975	24	—	—	—	—	0	1	1	0.0%	—	—	—	—	1	1	2	50.0%	1	2	3	33.3%
1976	25	1	1	2	50.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%	1	2	3	33.3%
1977	26	4	1	5	80.0%	0	1	1	0.0%	—	—	—	—	1	2	3	33.3%	5	4	9	55.6%
Career	—	5	2	7	71.4%	0	2	2	0.0%	—	—	—	—	2	4	6	33.3%	7	8	15	46.7%

Career Results by Opponent Rank

Jacek Niedzwiedzki 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 %
1975	24	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	0	—	—	0	1	1	0.0%
1977	26	0	0	—	—	0	0	—	—	1	2	3	33.3%	0	2	2	0.0%	1	4	5	20.0%
Career		0	0	—	—	0	1	1	0.0%	1	2	3	33.3%	0	2	2	0.0%	1	5	6	16.7%

Opponent ranking data available for 6/15 (40.0%) of Jacek Niedzwiedzki's ATP main draw matches.

Advanced Stats

Jacek Niedzwiedzki 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
1975	24	1509	106.5	—	—	—	—	—	—	—	42.9%	-0.86	—	1–1	—	-0.08
1976	25	1505	103.4	—	—	—	—	+45	—	—	42.9%	-1.00	0–1	1–0	—	+0.37
1977	26	1541	98.6	—	—	—	—	+58	—	—	52.4%	-0.19	2–1 (67%)	1–1	—	+2.29
Career		1559	102.9	—	—	—	—	+54	—	—	48.6%	-0.49	2–2 (50%)	3–2 (60%)	102.2	+17.20

Tournament Results by Category

Grand Slams

Jacek Niedzwiedzki Grand Slams results by season
Season	Age	RG	W-L Win %
1975	24	R128	0–1 (0%)
W-L		0–1 (0%)	0–1 (0%)

ATP 250

Jacek Niedzwiedzki ATP 250 results by season
Season	Age	BAS	AUS	STO	COL	DAY	SPR	ZUR	W-L Win %
1975	24	R16	—	—	—	—	—	—	1–1 (50%)
1976	25	—	—	R32	R32	—	—	—	1–2 (33%)
1977	26	—	R32	—	—	R16	R32	F	5–4 (56%)
W-L		1–1 (50%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	4–1 (80%)	7–7 (50%)

Results show the best round reached per tournament and season.

ATP Ranking History full ranking history →

Career high

172

Career-high date

Jul 4, 1977

First Top 100

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First Top 50

—

First Top 20

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First Top 10

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Ranking History Matrix

Jacek Niedzwiedzki ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1975	24	—	—	265	274	286	286	—	—	—	—	—	238
1977	26	—	—	—	—	—	—	172	—	—	—	—	—
1978	27	266	—	—	—	—	—	324	—	—	—	—	496
1979	28	—	—	—	—	—	—	—	—	—	—	—	420

Similar Players

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

Jacek Niedzwiedzki's most statistically similar ATP players
Player	Country	Peak Rank	Peak Elo	M	W	L	Win %	Years	Match Log
Roberto Chavez	MEX	172	1,571	24	11	13	45.8%	1968–1978	Match log
Janos Benyik	HUN	170	1,523	24	8	16	33.3%	1973–1978	Match log
Paul Avis	RSA	179	1,531	9	3	6	33.3%	1975–1981	Match log
Neale Fraser	AUS	188	1,562	34	13	21	38.2%	1968–1980	Match log
Per Hegna	NOR	180	1,515	3	1	2	33.3%	1974–1977	Match log
Ernie Ewert	AUS	189	1,569	58	21	37	36.2%	1971–1981	Match log
Timothy Noonan	USA	187	1,513	13	4	9	30.8%	1972–1977	Match log
Yuji Tezuka	JPN	177	1,552	8	3	5	37.5%	1974–1976	Match log
Ulf Eriksson	SWE	189	1,507	28	9	19	32.1%	1974–1980	Match log
Mike Wayman	GBR	171	1,535	18	4	14	22.2%	1974–1978	Match log
Jim Osborne	USA	211	1,811	239	118	121	49.4%	1968–1982	Match log
Gerard Wimmer	AUT	206	1,567	11	4	7	36.4%	1974–1981	Match log

Frequently Asked Questions

Which country does Jacek Niedzwiedzki represent?: Jacek Niedzwiedzki represents Poland in TennisDB's ATP records.
Is Jacek Niedzwiedzki left-handed or right-handed?: Jacek Niedzwiedzki plays right-handed.
How many Grand Slams has Jacek Niedzwiedzki won?: Jacek Niedzwiedzki has not won a Grand Slam title.
How many Masters 1000 titles has Jacek Niedzwiedzki won?: TennisDB does not group any of Jacek Niedzwiedzki's titles under the modern Masters 1000 category.
What is Jacek Niedzwiedzki's highest ATP ranking?: Jacek Niedzwiedzki's career-high ATP singles ranking is world No. 172, first achieved on July 4, 1977.
What is Jacek Niedzwiedzki's career win-loss record?: Jacek Niedzwiedzki has a career ATP singles record of 7 wins and 8 losses (46.7%).
Which seasons of Jacek Niedzwiedzki's career appear in TennisDB?: Jacek Niedzwiedzki appears in TennisDB's ATP main-tour match records from 1975 through 1977.
Who has Jacek Niedzwiedzki faced most often?: Jacek Niedzwiedzki's most frequent opponent is Pat Dupre, with a head-to-head record of 1–1 across 2 meetings.