Player data updated: 2026-09-08 02:15 UTC

Ken Flach

USA Died Mar 12, 2018 (age 54) 185 cm / 6'1" Plays: Right-Handed ATP Tour years active: 1982–1995

Ken Flach represented the United States on the ATP Tour and reached a career high of No. 56. TennisDB's records show a singles record of 52–80 and no singles titles.

Peak singles rank

56 (Dec 9, 1985)

Elo peak

1715 (56th percentile)

Singles record

52–80 (39.4%)

Singles titles

Prize money

$2,059,571

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 →

Ken Flach's recent, live, and scheduled ATP matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Jim Courier #14	6-7(3) 6-3 3-6 6-3 4-6	L	H2H	Match data	Jun 28, 1995*	R128	Wimbledon	Grand Slam	Grass
Jim Courier #10	4-6 2-6	L	H2H	Match data	Aug 11, 1994*	R32	Cincinnati Open	Masters 1000	Hard
Nicklas Kulti #97	2-6 7-6(2) 6-2	W	H2H	Match data	Aug 10, 1994*	R64	Cincinnati Open	Masters 1000	Hard
Peter Lundgren #171	5-7 2-6	L	H2H	Match data	Jul 15, 1992*	R64	Washington Open	ATP Championship Series → modern equivalent ATP 500	Hard
Jeff Tarango #121	6-7(5) 4-6	L	H2H	Match data	Apr 4, 1991*	R32	Orlando	ATP World Series → modern equivalent ATP 250	Hard

Rivals all rivalries →

Ken Flach's most-played ATP rivals
Opponent	W	L	M	Last Played	H2H
Peter Lundgren	0	3	3	Jul 15, 1992	H2H
John Sadri	3	0	3	Jun 26, 1987	H2H
Tim Mayotte	0	3	3	Aug 7, 1985	H2H
Vijay Amritraj	3	0	3	May 3, 1985	H2H
Terry Moor	1	2	3	May 2, 1985	H2H

Career Results

Ken Flach career results by season
Season	Age	W	L	M	Win %	Start Rank	End Rank
1982	19	0	1	1	0.0%	—	—
1983	20	2	3	5	40.0%	314	314
1984	21	7	6	13	53.9%	295	155
1985	22	12	12	24	50.0%	154	60
1986	23	4	15	19	21.1%	60	223
1987	24	10	13	23	43.5%	223	100
1988	25	7	12	19	36.8%	101	203
1989	26	6	7	13	46.2%	207	194
1990	27	3	6	9	33.3%	217	222
1991	28	0	2	2	0.0%	222	572
1992	29	0	1	1	0.0%	572	742
1994	31	1	1	2	50.0%	576	514
1995	32	0	1	1	0.0%	514	835
Career		52	80	132	39.4%	—	—

Career Results by Surface

Ken Flach 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 %
1982	19	—	—	—	—	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%
1983	20	1	1	2	50.0%	0	1	1	0.0%	1	1	2	50.0%	—	—	—	—	2	3	5	40.0%
1984	21	3	2	5	60.0%	—	—	—	—	3	3	6	50.0%	1	1	2	50.0%	7	6	13	53.8%
1985	22	10	8	18	55.6%	—	—	—	—	1	2	3	33.3%	1	2	3	33.3%	12	12	24	50.0%
1986	23	2	6	8	25.0%	0	3	3	0.0%	2	2	4	50.0%	0	4	4	0.0%	4	15	19	21.1%
1987	24	6	8	14	42.9%	—	—	—	—	4	4	8	50.0%	0	1	1	0.0%	10	13	23	43.5%
1988	25	2	6	8	25.0%	0	1	1	0.0%	3	2	5	60.0%	2	3	5	40.0%	7	12	19	36.8%
1989	26	3	4	7	42.9%	—	—	—	—	2	1	3	66.7%	1	2	3	33.3%	6	7	13	46.2%
1990	27	2	4	6	33.3%	—	—	—	—	1	1	2	50.0%	0	1	1	0.0%	3	6	9	33.3%
1991	28	0	1	1	0.0%	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	2	2	0.0%
1992	29	0	1	1	0.0%	—	—	—	—	—	—	—	—	—	—	—	—	0	1	1	0.0%
1994	31	1	1	2	50.0%	—	—	—	—	—	—	—	—	—	—	—	—	1	1	2	50.0%
1995	32	—	—	—	—	—	—	—	—	0	1	1	0.0%	—	—	—	—	0	1	1	0.0%
Career	—	30	42	72	41.7%	0	6	6	0.0%	17	17	34	50.0%	5	15	20	25.0%	52	80	132	39.4%

Career Results by Opponent Rank

Ken Flach 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 %
1982	19	0	1	1	0.0%	0	0	—	—	0	0	—	—	0	0	—	—	0	1	1	0.0%
1983	20	0	0	—	—	0	0	—	—	1	2	3	33.3%	0	0	—	—	1	2	3	33.3%
1984	21	0	0	—	—	1	1	2	50.0%	2	2	4	50.0%	2	2	4	50.0%	5	5	10	50.0%
1985	22	0	2	2	0.0%	0	6	6	0.0%	7	1	8	87.5%	3	3	6	50.0%	10	12	22	45.5%
1986	23	0	2	2	0.0%	1	0	1	100.0%	1	6	7	14.3%	2	5	7	28.6%	4	13	17	23.5%
1987	24	0	2	2	0.0%	2	2	4	50.0%	2	4	6	33.3%	6	5	11	54.5%	10	13	23	43.5%
1988	25	0	1	1	0.0%	0	3	3	0.0%	5	6	11	45.5%	2	1	3	66.7%	7	11	18	38.9%
1989	26	0	0	—	—	0	2	2	0.0%	3	4	7	42.9%	2	1	3	66.7%	5	7	12	41.7%
1990	27	0	0	—	—	0	0	—	—	1	6	7	14.3%	2	0	2	100.0%	3	6	9	33.3%
1991	28	0	0	—	—	0	0	—	—	0	0	—	—	0	2	2	0.0%	0	2	2	0.0%
1992	29	0	0	—	—	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%
1994	31	0	1	1	0.0%	0	0	—	—	1	0	1	100.0%	0	0	—	—	1	1	2	50.0%
1995	32	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	0	—	—	0	1	1	0.0%
Career		0	9	9	0.0%	4	15	19	21.1%	23	31	54	42.6%	19	20	39	48.7%	46	75	121	38.0%

Opponent ranking data available for 121/132 (91.7%) of Ken Flach's ATP main draw matches.

Performance Stats

Ken Flach performance statistics by season
Season	Age	Sample	Aces/M	DFs/M	1st Sv%	1st Sv Pts%	2nd Sv Pts%	BP Saved%	BP Conv%	Svc Pts%	Ret Pts%
1991	28	2/2	7.5	1.5	65.6%	70.8%	56.1%	41.7%	16.7%	65.7%	33.4%
1992	29	1/1	6.0	3.0	50.8%	74.2%	40.0%	25.0%	0.0%	57.4%	32.4%
1994	31	2/2	9.5	3.0	59.7%	71.7%	42.9%	70.0%	50.0%	60.3%	28.8%
1995	32	1/1	10.0	14.0	48.1%	75.9%	41.5%	57.1%	41.2%	58.0%	41.3%
Career		6/132	8.3	4.3	58.2%	72.5%	46.6%	50.9%	29.1%	61.2%	33.0%

Detailed serve and return statistics available for 6/132 (4.5%) of Ken Flach's ATP main draw matches.

Advanced Stats

Ken Flach 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
1982	19	1499	112.4	—	—	—	—	—	—	—	0.0%	-4.00	—	—	—	-0.28
1983	20	1522	107.7	—	—	—	—	—	—	—	41.7%	-0.75	—	0–2	—	+0.25
1984	21	1599	117.5	—	—	—	—	+21	—	-14	51.2%	-0.05	4–3 (57%)	2–4 (33%)	101.1	+0.63
1985	22	1676	134.2	—	—	—	—	+19	—	-94	44.8%	-0.26	4–0 (100%)	4–2 (67%)	107.4	-0.49
1986	23	1557	111.4	—	—	—	—	+7	-76	+56	29.4%	-1.16	2–4 (33%)	2–4 (33%)	97.2	-0.12
1987	24	1622	115.8	—	—	—	—	-40	—	+10	48.6%	-0.39	2–5 (29%)	9–4 (69%)	99.8	+1.50
1988	25	1618	116.8	—	—	—	—	-94	—	+56	42.1%	-0.67	4–5 (44%)	4–5 (44%)	98.2	-1.49
1989	26	1652	118.7	—	—	—	—	-87	—	+41	48.9%	-0.31	3–4 (43%)	7–5 (58%)	102.6	-0.04
1990	27	1612	118.0	—	—	—	—	-53	—	—	44.0%	-0.40	1–4 (20%)	2–1 (67%)	—	-0.05
1991	28	1576	100.1	-1.14	-2.20	0.974	48.8%	—	—	—	20.0%	-1.20	0–1	1–1	—	+0.27
1992	29	1559	98.8	-2.84	-0.85	0.759	44.2%	—	—	—	0.0%	-3.00	—	—	—	+0.08
1994	31	1576	112.6	-0.30	+1.03	0.724	46.6%	—	—	—	40.0%	-1.00	1–0	1–0	—	-0.06
1995	32	1571	105.1	+1.22	+5.29	0.983	49.9%	—	—	—	40.0%	0.00	0–1	0–1	—	-0.28
Career		1715	126.9	-0.75	+0.35	0.851	47.5%	-29	-76	+12	43.2%	-0.53	21–27 (44%)	32–29 (52%)	100.9	-0.06

Tournament Results by Category

Grand Slams

Ken Flach Grand Slams results by season
Season	Age	AO	RG	W	USO	W-L Win %
1983	20	R32	—	—	—	1–1 (50%)
1984	21	R128	—	R64	R32	3–3 (50%)
1985	22	—	—	R64	R64	2–2 (50%)
1986	23	—	R128	R32	R128	2–3 (40%)
1987	24	R32	—	R32	R16	6–3 (67%)
1988	25	—	R128	R32	R128	2–3 (40%)
1989	26	—	—	R32	R32	4–2 (67%)
1990	27	—	—	R64	—	1–1 (50%)
1995	32	—	—	R128	—	0–1 (0%)
W-L		2–3 (40%)	0–2 (0%)	11–8 (58%)	8–6 (57%)	21–19 (52%)

Masters 1000

Ken Flach Masters 1000 results by season
Season	Age	CIN	IW	W-L Win %
1990	27	—	R32	1–1 (50%)
1994	31	R32	—	1–1 (50%)
W-L		1–1 (50%)	1–1 (50%)	2–2 (50%)

ATP 500

Ken Flach ATP 500 results by season
Season	Age	CIN	U.S	WAS	MIA	MIA	CAN	PHI	W-L Win %
1985	22	R16	—	—	—	—	R64	—	2–2 (50%)
1986	23	—	—	—	R128	—	—	—	0–1 (0%)
1987	24	R64	—	—	—	R64	—	—	1–2 (33%)
1988	25	R64	—	—	—	R64	R64	—	1–3 (25%)
1990	27	—	R64	R64	—	—	—	R64	0–3 (0%)
1992	29	—	—	R64	—	—	—	—	0–1 (0%)
W-L		2–3 (40%)	0–1 (0%)	0–2 (0%)	0–1 (0%)	2–2 (50%)	0–2 (0%)	0–1 (0%)	4–12 (25%)

ATP 250

Ken Flach ATP 250 results by season
Season	Age	ATL	HOU	U.S	NWP	QUE	SEL	TKY	WAS	BRI	CHI	DET	FOR	FOR	LAS	LIV	LOS	MEM	NOR	ORL	PHI	SAN	SCO	SOU	STR	SYD	TAI	WEM	W-L Win %
1982	19	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	0–1 (0%)
1983	20	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	1–2 (33%)
1984	21	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	R16	—	4–3 (57%)
1985	22	R16	—	—	—	—	—	R16	—	R32	—	—	—	R16	SF	—	R16	—	—	—	—	—	—	—	R64	—	—	—	8–7 (53%)
1986	23	—	R32	R64	—	R64	—	R32	—	—	—	—	R64	R16	—	R32	—	R64	—	—	R64	—	—	—	R32	—	—	—	2–10 (17%)
1987	24	—	—	—	R16	—	R32	R64	R64	—	—	—	—	—	—	QF	—	—	—	—	—	R32	R32	—	—	R32	—	—	3–8 (27%)
1988	25	—	—	R32	—	R32	—	R32	—	—	—	R32	—	—	—	—	—	R64	—	—	R16	—	—	—	—	—	—	—	4–6 (40%)
1989	26	—	—	—	—	—	—	R64	—	—	—	—	—	—	—	—	—	R64	—	—	R32	—	—	—	R32	—	—	R32	2–5 (29%)
1990	27	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	1–1 (50%)
1991	28	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	0–2 (0%)
W-L		1–1 (50%)	0–1 (0%)	1–2 (33%)	1–1 (50%)	1–2 (33%)	0–1 (0%)	4–7 (36%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	2–2 (50%)	3–1 (75%)	2–2 (50%)	1–1 (50%)	1–4 (20%)	0–1 (0%)	0–1 (0%)	3–3 (50%)	0–1 (0%)	0–1 (0%)	0–1 (0%)	2–3 (40%)	2–2 (50%)	1–1 (50%)	0–1 (0%)	25–45 (36%)

Results show the best round reached per tournament and season.

ATP Ranking History full ranking history →

Career high

Career-high date

Dec 9, 1985

First Top 100

May 6, 1985

First Top 50

—

First Top 20

—

First Top 10

—

Ranking History Matrix

Ken Flach ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
1983	20	314	—	—	—	—	—	—	—	—	—	—	—
1984	21	295	—	—	—	—	243	220	224	167	173	162	155
1985	22	168	167	165	118	60	60	62	60	61	71	61	60
1986	23	60	80	72	74	163	167	147	142	194	207	221	223
1987	24	184	168	172	191	175	165	155	187	95	95	103	100
1988	25	115	102	99	92	90	94	99	94	182	185	196	203
1989	26	208	223	225	256	268	317	281	269	206	204	204	194
1990	27	222	254	187	197	193	191	199	219	218	217	218	222
1991	28	220	220	282	259	279	275	391	375	559	557	561	572
1992	29	569	556	635	773	759	757	613	625	622	732	739	742
1993	30	747	754	763	783	793	803	809	—	—	—	—	—
1994	31	—	—	—	—	—	—	—	580	576	522	512	514
1995	32	510	520	521	518	519	527	466	679	686	818	845	835
1996	33	837	834	834	835	831	815	815	—	—	—	—	—

Similar Players

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

Ken Flach's most statistically similar ATP players
Player	Country	Peak ranking	Peak Elo	M	W	L	Win %	Prize money	Titles	Years	Rivalries	Match log
Todd Nelson	USA	#58	1,650	143	53	90	37.1%	$541,277	0	1983–1993	Rivalries	Match log
Joey Rive	USA	#57	1,737	125	54	71	43.2%	$388,558	0	1985–1991	Rivalries	Match log
Eduardo Masso	BEL	#56	1,685	110	41	69	37.3%	$397,593	0	1986–1992	Rivalries	Match log
Aki Rahunen	FIN	#57	1,682	69	27	42	39.1%	$257,054	0	1990–1992	Rivalries	Match log
Martin Strelba	CZE	#53	1,691	110	42	68	38.2%	$400,835	0	1987–1993	Rivalries	Match log
Richard Matuszewski	USA	#49	1,693	134	54	80	40.3%	$550,506	0	1985–1995	Rivalries	Match log
Alberto Tous	ESP	#52	1,633	101	40	61	39.6%	$200,221	0	1982–1989	Rivalries	Match log
Christian Miniussi	ARG	#57	1,691	140	59	81	42.1%	$651,069	1	1984–1995	Rivalries	Match log
Francisco Yunis	ARG	#61	1,589	67	27	40	40.3%	$198,607	0	1984–1993	Rivalries	Match log
Jens Woehrmann	GER	#54	1,670	47	20	27	42.6%	$165,790	0	1989–1991	Rivalries	Match log
Jeremy Bates	GBR	#54	1,717	292	117	175	40.1%	$1,338,555	1	1980–1996	Rivalries	Match log
Ricki Osterthun	GER	#58	1,696	139	60	79	43.2%	$390,259	1	1984–1990	Rivalries	Match log

Frequently Asked Questions

Which country does Ken Flach represent?: Ken Flach represents United States in TennisDB's ATP records.
How tall is Ken Flach?: Ken Flach is 185 cm / 6'1".
Is Ken Flach left-handed or right-handed?: Ken Flach plays right-handed.
How many Grand Slam singles titles has Ken Flach won?: Ken Flach has not won a Grand Slam singles title.
How many Masters 1000 titles has Ken Flach won?: TennisDB does not group any of Ken Flach's titles under the modern Masters 1000 category.
What is Ken Flach's highest ATP ranking?: Ken Flach's career-high ATP singles ranking is world No. 56, first achieved on December 9, 1985.
What is Ken Flach's career win-loss record?: Ken Flach has a career ATP singles record of 52 wins and 80 losses (39.4%).
How much career prize money has Ken Flach earned?: Ken Flach has earned at least $2,059,571 in career prize money from professional tennis.
Which seasons of Ken Flach's career appear in TennisDB?: Ken Flach appears in TennisDB's ATP main-tour match records from 1982 through 1995.
On which surface does Ken Flach have the highest recorded win rate?: Among surfaces with at least 20 recorded matches, Ken Flach's highest ATP main-draw win rate is on grass: 50.0% (17–17).
Who has Ken Flach faced most often?: Ken Flach's most frequent opponent is Peter Lundgren, with a head-to-head record of 0–3 across 3 meetings.