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

Katie Obrien

GBR 167 cm / 5'6" Plays: Right-Handed WTA Tour years active: 2004–2011

Katie Obrien represented the United Kingdom on the WTA Tour and reached a career high of No. 84. TennisDB's records show a singles record of 9–34 and no singles titles.

Peak singles rank

84 (Feb 1, 2010)

Elo peak

1514 (9th percentile)

Singles record

9–34 (20.9%)

Singles titles

Prize money

$525,141

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 →

Katie Obrien's recent, live, and scheduled WTA matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Kimiko Date #57	0-6 5-7	L	H2H	Match data	Jun 22, 2011*	R128	Wimbledon	Grand Slam	Grass
Ekaterina Ivanova #159	5-7 1-6	L	H2H	Match data	Sep 23, 2010*	R32	Tashkent	International → modern equivalent WTA 250	Hard
Sania Mirza #144	3-6 6-1 2-6	L	H2H	Match data	Sep 16, 2010*	R32	Guangzhou Open	International → modern equivalent WTA 250	Hard
Alona Bondarenko #30	3-6 7-6(10) 4-6	L	H2H	Match data	Jun 23, 2010*	R128	Wimbledon	Grand Slam	Grass
Sesil Karatantcheva #144	3-6 4-6	L	H2H	Match data	Jun 9, 2010*	R64	Birmingham	International → modern equivalent WTA 250	Grass

Rivals all rivalries →

Katie Obrien's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Alla Kudryavtseva	1	1	2	Sep 17, 2009	H2H
Monica Niculescu	0	2	2	Jul 16, 2009	H2H
Olga Govortsova	0	2	2	May 26, 2009	H2H
Kimiko Date	0	1	1	Jun 22, 2011	H2H
Ekaterina Ivanova	0	1	1	Sep 23, 2010	H2H

Career Results

Katie Obrien career results by season
Season	W	L	M	Win %	Start Rank	End Rank
2004	0	1	1	0.0%	755	387
2005	0	1	1	0.0%	387	267
2006	0	3	3	0.0%	267	187
2007	4	3	7	57.1%	187	127
2008	2	8	10	20.0%	127	159
2009	1	9	10	10.0%	159	88
2010	2	8	10	20.0%	88	179
2011	0	1	1	0.0%	179	357
Career	9	34	43	20.9%	—	—

Career Results by Surface

Katie Obrien career results by season and surface
Season	Hard				Clay				Grass				Total
Season	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
2004	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%
2005	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%
2006	—	—	—	—	—	—	—	—	0	3	3	0.0%	0	3	3	0.0%
2007	2	1	3	66.7%	—	—	—	—	2	2	4	50.0%	4	3	7	57.1%
2008	1	3	4	25.0%	0	2	2	0.0%	1	3	4	25.0%	2	8	10	20.0%
2009	1	4	5	20.0%	0	3	3	0.0%	0	2	2	0.0%	1	9	10	10.0%
2010	1	4	5	20.0%	1	2	3	33.3%	0	2	2	0.0%	2	8	10	20.0%
2011	—	—	—	—	—	—	—	—	0	1	1	0.0%	0	1	1	0.0%
Career	5	12	17	29.4%	1	7	8	12.5%	3	15	18	16.7%	9	34	43	20.9%

Career Results by Opponent Rank

Katie Obrien 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 %
2004	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
2005	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	0	—	—	0	1	1	0.0%
2006	0	0	—	—	0	1	1	0.0%	0	1	1	0.0%	0	1	1	0.0%	0	3	3	0.0%
2007	0	0	—	—	0	1	1	0.0%	1	2	3	33.3%	3	0	3	100.0%	4	3	7	57.1%
2008	0	0	—	—	0	1	1	0.0%	1	1	2	50.0%	1	6	7	14.3%	2	8	10	20.0%
2009	0	1	1	0.0%	0	0	—	—	0	6	6	0.0%	1	2	3	33.3%	1	9	10	10.0%
2010	0	1	1	0.0%	0	1	1	0.0%	2	0	2	100.0%	0	6	6	0.0%	2	8	10	20.0%
2011	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
Career	0	2	2	0.0%	0	5	5	0.0%	4	12	16	25.0%	5	15	20	25.0%	9	34	43	20.9%

Performance Stats

Katie Obrien performance statistics by season
Season	Sample	Aces/M	DFs/M	1st Sv%	1st Sv Pts%	2nd Sv Pts%	BP Saved%	BP Conv%	Svc Pts%	Ret Pts%
2005	1/1	0.0	4.0	51.2%	63.6%	47.6%	0.0%	—	55.8%	20.0%
2006	2/3	1.5	6.0	58.1%	57.7%	42.1%	37.9%	62.5%	51.1%	42.8%
2007	4/7	2.3	5.3	55.7%	62.5%	36.7%	44.9%	36.4%	51.4%	42.2%
2008	6/10	1.5	6.7	54.5%	62.6%	43.3%	54.5%	42.0%	53.7%	42.6%
2009	9/10	1.2	6.6	59.0%	54.7%	35.8%	45.2%	44.2%	46.9%	39.4%
2010	8/10	1.6	6.3	59.5%	54.8%	39.7%	41.7%	33.7%	49.0%	37.8%
2011	1/1	2.0	5.0	62.9%	46.2%	30.4%	41.7%	60.0%	40.3%	37.5%
Career	31/43	1.5	6.2	57.6%	57.5%	39.0%	44.0%	40.3%	49.7%	39.5%

Detailed serve and return statistics available for 31/43 (72.1%) of Katie Obrien's WTA main draw matches.

Advanced Stats

Katie Obrien 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
2004	1492	98.4	—	—	—	—	—	—	—	0.0%	-2.00	—	—	—	-0.06
2005	1492	103.3	+4.63	+2.47	0.453	37.5%	—	—	—	0.0%	-3.50	—	—	—	-0.29
2006	1462	94.0	-0.38	+0.43	0.876	47.0%	—	—	+15	25.0%	-1.50	0–2	0–1	—	+0.02
2007	1502	98.4	-1.08	-1.93	0.868	46.8%	+35	—	+18	53.3%	-0.33	1–0	1–0	—	+0.89
2008	1451	98.3	-1.41	-1.77	0.920	48.4%	+67	—	+20	30.8%	-1.19	2–4 (33%)	3–0 (100%)	—	+0.44
2009	1391	89.7	-5.01	-2.96	0.742	43.3%	+96	+66	—	21.7%	-2.04	0–3 (0%)	0–1	—	+0.39
2010	1371	97.5	-2.84	-3.79	0.741	43.8%	+103	+65	—	29.2%	-1.67	1–3 (25%)	1–0	—	+0.42
2011	1366	99.1	-2.49	-4.08	0.628	39.1%	—	—	—	0.0%	-4.00	—	—	—	-0.01
Career	1514	93.8	-2.56	-2.45	0.785	44.8%	+80	+66	+18	29.4%	-1.51	4–12 (25%)	5–2 (71%)	95.3	+4.19

Tournament Results by Category

Grand Slams

Katie Obrien Grand Slams results by season
Season	AO	RG	W	W-L Win %
2004	—	—	R128	0–1 (0%)
2005	—	—	R128	0–1 (0%)
2006	—	—	R128	0–1 (0%)
2007	—	—	R64	1–1 (50%)
2008	—	—	R128	0–1 (0%)
2009	R128	R128	R128	0–3 (0%)
2010	R64	R128	R128	1–3 (25%)
2011	—	—	R128	0–1 (0%)
W-L	1–2 (33%)	0–2 (0%)	1–8 (11%)	2–12 (14%)

WTA 500

Katie Obrien WTA 500 results by season
Season	EAS	BAN	CHA	W-L Win %
2006	R32	—	—	0–1 (0%)
2007	R16	—	—	1–1 (50%)
2008	R32	R32	—	0–2 (0%)
2009	—	—	R64	0–1 (0%)
W-L	1–3 (25%)	0–1 (0%)	0–1 (0%)	1–5 (17%)

WTA 250

Katie Obrien WTA 250 results by season
Season	BIR	FES	MOR	GUA	MEM	JAP	PAL	POR	PRA	QUE	TAS	W-L Win %
2006	R64	—	—	—	—	—	—	—	—	—	—	0–1 (0%)
2007	—	—	—	—	—	—	—	—	—	—	QF	2–1 (67%)
2008	R32	R32	—	—	—	—	R32	R16	—	—	R32	2–5 (29%)
2009	R64	—	—	—	—	R16	—	R32	R32	R32	—	1–5 (17%)
2010	R64	—	R16	R32	R32	—	—	—	—	—	R32	1–5 (17%)
W-L	1–4 (20%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	0–1 (0%)	1–1 (50%)	0–1 (0%)	1–2 (33%)	0–1 (0%)	0–1 (0%)	2–3 (40%)	6–17 (26%)

Results show the best round reached per tournament and season.

WTA Ranking History full ranking history →

Career high

Career-high date

Feb 1, 2010

First Top 100

Sep 28, 2009

First Top 50

—

First Top 20

—

First Top 10

—

Ranking History Matrix

Katie Obrien ranking history by month and season
Season	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2002	—	—	—	—	—	—	—	—	—	688	695	700
2003	697	727	732	738	701	692	642	630	629	810	752	755
2004	753	713	635	626	602	576	523	489	441	393	399	387
2005	360	325	326	307	312	320	291	271	270	263	260	267
2006	257	258	264	262	237	235	257	237	245	205	190	187
2007	181	182	181	185	190	154	127	136	141	136	128	127
2008	123	121	122	115	112	127	140	140	138	152	155	159
2009	160	140	134	126	113	108	109	104	98	91	89	88
2010	87	93	103	110	123	130	129	127	152	171	181	179
2011	228	217	198	221	221	215	246	287	333	359	359	357
2012	375	407	556	673	782	782	—	—	—	—	—	—

Similar Players

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

Katie Obrien's most statistically similar WTA players
Player	Country	Peak ranking	Peak Elo	M	W	L	Win %	Prize money	Years	Rivalries	Match log
Yuliya Beygelzimer	UKR	#83	1,500	51	11	40	21.6%	$896,574	2001–2015	Rivalries	Match log
Masa Zec-Peskiric	SLO	#93	1,522	27	6	21	22.2%	$361,631	2005–2011	Rivalries	Match log
Ahsha Rolle	USA	#82	1,551	28	8	20	28.6%	$388,608	2005–2011	Rivalries	Match log
Olivia Sanchez	FRA	#90	1,516	21	5	16	23.8%	$376,039	2006–2011	Rivalries	Match log
Julie Ditty	USA	#89	1,545	38	10	28	26.3%	$493,612	2005–2011	Rivalries	Match log
Nina Bratchikova	RUS	#80	1,528	49	14	35	28.6%	$776,195	2004–2013	Rivalries	Match log
Stéphanie Dubois	CAN	#87	1,569	84	23	61	27.4%	$902,867	2004–2014	Rivalries	Match log
Rika Fujiwara	JPN	#84	1,561	55	18	37	32.7%	$882,018	2000–2011	Rivalries	Match log
Meng Yuan	CHN	#86	1,576	55	17	38	30.9%	$398,170	2005–2009	Rivalries	Match log
Sandra Kloesel	GER	#87	1,515	70	16	54	22.9%	$653,396	1996–2009	Rivalries	Match log
Zuzana Kucova	SVK	#101	1,518	25	6	19	24.0%	$418,032	2004–2013	Rivalries	Match log
Sanda Mamic	CRO	#83	1,586	37	14	23	37.8%	$237,432	2004–2008	Rivalries	Match log

Frequently Asked Questions

Which country does Katie Obrien represent?: Katie Obrien represents United Kingdom in TennisDB's WTA records.
How tall is Katie Obrien?: Katie Obrien is 167 cm / 5'6".
Is Katie Obrien left-handed or right-handed?: Katie Obrien plays right-handed.
How many Grand Slam singles titles has Katie Obrien won?: Katie Obrien has not won a Grand Slam singles title.
How many WTA 1000 titles has Katie Obrien won?: TennisDB does not group any of Katie Obrien's titles under the modern WTA 1000 category.
What is Katie Obrien's highest WTA ranking?: Katie Obrien's career-high WTA singles ranking is world No. 84, first achieved on February 1, 2010.
What is Katie Obrien's career win-loss record?: Katie Obrien has a career WTA singles record of 9 wins and 34 losses (20.9%).
How much career prize money has Katie Obrien earned?: Katie Obrien has earned at least $525,141 in career prize money from professional tennis.
Which seasons of Katie Obrien's career appear in TennisDB?: Katie Obrien appears in TennisDB's WTA main-tour match records from 2004 through 2011.
Who has Katie Obrien faced most often?: Katie Obrien's most frequent opponent is Alla Kudryavtseva, with a head-to-head record of 1–1 across 2 meetings.