Player data updated: 2026-09-14 13:26 UTC

Kiki Bertens

NED Age 34 182 cm / 6'0" Plays: Right-Handed, Two-Handed Backhand WTA Tour years active: 2011–2021

Kiki Bertens represented the Netherlands on the WTA Tour and reached a career high of No. 4. TennisDB's records show a singles record of 216–172 and 11 singles titles.

Peak singles rank

4 (May 13, 2019)

Elo peak

2004 (93rd percentile)

Singles record

216–172 (55.7%)

Singles titles

Prize money

$11,653,189

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

Jump to section

WTA Matches full match log →

Kiki Bertens's recent, live, and scheduled WTA matches
Opponent	Score	Result	H2H	Match Data	Date	Round	Tournament	Category	Surface
Marketa Vondrousova #42	4-6 6-3 4-6	L	H2H	Match data	Jul 26, 2021*	R64	Tokyo Olympics	Olympics	Hard
Marta Kostyuk #70	3-6 4-6	L	H2H	Match data	Jun 30, 2021*	R128	Wimbledon	Grand Slam	Grass
Shelby Rogers #47	1-6 5-7	L	H2H	Match data	Jun 24, 2021*	R32	Eastbourne Open	WTA 500	Grass
Polona Hercog #73	1-6 6-3 4-6	L	H2H	Match data	Jun 1, 2021*	R128	Roland Garros	Grand Slam	Clay
Veronika Kudermetova #28	4-6 3-6	L	H2H	Match data	May 3, 2021*	R32	Madrid Open	WTA 1000	Clay

Rivals all rivalries →

Kiki Bertens's most-played WTA rivals
Opponent	W	L	M	Last Played	H2H
Mona Barthel	3	6	9	May 25, 2018	H2H
Anastasia Pavlyuchenkova	5	3	8	Sep 20, 2019	H2H
Sara Errani	1	5	6	Sep 30, 2020	H2H
Petra Kvitova	3	3	6	May 10, 2019	H2H
Annika Beck	5	1	6	May 26, 2017	H2H

Singles Titles (11)

Kiki Bertens 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
2012	20	1	—	—	—	1	—	Fes
2016	24	1	—	—	—	1	—	Nurnberg
2017	25	2	—	—	—	2	—	Ladies Championship Gstaad, Nürnberg
2018	26	3	—	1	1	1	—	Korea Open, Charleston Open, Cincinnati Open
2019	27	2	—	1	1	—	—	St. Petersburg, Madrid Open
2020	28	1	—	—	1	—	—	St. Petersburg
Total		11	—	2	3	6	—

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

Olympic Singles Results (2)

Kiki Bertens Olympic singles results
Edition	Event	Result	W	L	Last Match	H2H	Match Data
2016	Rio de Janeiro Olympics	First Round	0	1	Sara Errani #24 def. Kiki Bertens #22 4-6 6-4 6-3	H2H	Match data
2020	Tokyo Olympics	First Round	0	1	Marketa Vondrousova #42 def. Kiki Bertens #24 6-4 3-6 6-4	H2H	Match data

Career Results

Kiki Bertens career results by season
Season	Age	Type	W	L	M	Win %	Start Rank	End Rank
2011	19	WTA	0	1	1	0.0%	219	182
2012	20	WTA	11	12	23	47.8%	182	63
2013	21	WTA	14	19	33	42.4%	63	87
2014	22	WTA	11	14	25	44.0%	94	68
2015	23	WTA	7	17	24	29.2%	68	104
2016	24	Qualifying Q	7	1	8	87.5%	—	—
2016	24	WTA	26	20	46	56.5%	104	22
2017	25	WTA	30	26	56	53.6%	22	31
2018	26	WTA	46	23	69	66.7%	31	9
2019	27	WTA	57	26	83	68.7%	9	9
2020	28	WTA	13	6	19	68.4%	9	9
2021	29	WTA	1	8	9	11.1%	9	25
Career		—	216	172	388	55.7%	—	—

Career Results by Surface

Kiki Bertens career results by season and surface
Season	Age	Type	Hard				Clay				Grass				Carpet				Total
Season	Age	Type	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %	W	L	M	Win %
2011	19	WTA	—	—	—	—	—	—	—	—	0	1	1	0.0%	—	—	—	—	0	1	1	0.0%
2012	20	WTA	5	7	12	41.7%	5	3	8	62.5%	1	2	3	33.3%	—	—	—	—	11	12	23	47.8%
2013	21	WTA	5	8	13	38.5%	6	8	14	42.9%	0	2	2	0.0%	3	1	4	75.0%	14	19	33	42.4%
2014	22	WTA	5	10	15	33.3%	6	4	10	60.0%	—	—	—	—	—	—	—	—	11	14	25	44.0%
2015	23	WTA	3	12	15	20.0%	1	3	4	25.0%	3	2	5	60.0%	—	—	—	—	7	17	24	29.2%
2016	24	Qualifying Q	7	1	8	87.5%	—	—	—	—	—	—	—	—	—	—	—	—	7	1	8	87.5%
2016	24	WTA	7	14	21	33.3%	17	5	22	77.3%	2	1	3	66.7%	—	—	—	—	26	20	46	56.5%
2017	25	WTA	7	16	23	30.4%	23	7	30	76.7%	0	3	3	0.0%	—	—	—	—	30	26	56	53.6%
2018	26	WTA	26	15	41	63.4%	15	5	20	75.0%	5	3	8	62.5%	—	—	—	—	46	23	69	66.7%
2019	27	WTA	30	18	48	62.5%	18	5	23	78.3%	9	3	12	75.0%	—	—	—	—	57	26	83	68.7%
2020	28	WTA	10	3	13	76.9%	3	3	6	50.0%	—	—	—	—	—	—	—	—	13	6	19	68.4%
2021	29	WTA	0	4	4	0.0%	1	2	3	33.3%	0	2	2	0.0%	—	—	—	—	1	8	9	11.1%
Career	—	—	98	107	205	47.8%	95	45	140	67.9%	20	19	39	51.3%	3	1	4	75.0%	216	172	388	55.7%

Career Results by Opponent Rank

Kiki Bertens 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 %
2011	19	0	0	—	—	0	0	—	—	0	1	1	0.0%	0	0	—	—	0	1	1	0.0%
2012	20	0	1	1	0.0%	3	2	5	60.0%	6	8	14	42.9%	2	1	3	66.7%	11	12	23	47.8%
2013	21	0	3	3	0.0%	2	5	7	28.6%	7	9	16	43.8%	4	2	6	66.7%	13	19	32	40.6%
2014	22	0	0	—	—	2	5	7	28.6%	6	9	15	40.0%	3	0	3	100.0%	11	14	25	44.0%
2015	23	0	3	3	0.0%	0	2	2	0.0%	5	9	14	35.7%	2	3	5	40.0%	7	17	24	29.2%
2016	24	3	3	6	50.0%	3	3	6	50.0%	14	10	24	58.3%	5	4	9	55.6%	25	20	45	55.6%
2017	25	0	3	3	0.0%	1	4	5	20.0%	19	13	32	59.4%	10	6	16	62.5%	30	26	56	53.6%
2018	26	12	7	19	63.2%	5	4	9	55.6%	19	7	26	73.1%	10	3	13	76.9%	46	21	67	68.7%
2019	27	9	4	13	69.2%	12	8	20	60.0%	20	13	33	60.6%	16	1	17	94.1%	57	26	83	68.7%
2020	28	0	1	1	0.0%	5	0	5	100.0%	3	4	7	42.9%	5	1	6	83.3%	13	6	19	68.4%
2021	29	0	0	—	—	0	1	1	0.0%	0	5	5	0.0%	1	2	3	33.3%	1	8	9	11.1%
Career		24	25	49	49.0%	33	34	67	49.3%	99	88	187	52.9%	58	23	81	71.6%	214	170	384	55.7%

Opponent ranking data available for 384/388 (99.0%) of Kiki Bertens's WTA main draw matches.

Performance Stats

Kiki Bertens 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%
2011	19	1/1	3.0	5.0	53.7%	61.1%	32.3%	50.0%	42.9%	47.8%	40.9%
2012	20	23/23	2.9	4.1	60.5%	65.3%	41.1%	49.3%	48.2%	55.7%	42.3%
2013	21	30/33	2.2	5.5	57.6%	61.8%	42.9%	51.9%	45.5%	54.1%	43.7%
2014	22	22/25	2.7	4.0	58.1%	60.8%	44.5%	49.6%	41.8%	53.8%	45.8%
2015	23	19/24	1.9	5.1	63.9%	59.1%	51.6%	53.8%	57.3%	56.1%	36.8%
2016	24	45/46	3.8	3.4	60.1%	67.4%	47.6%	55.6%	44.9%	59.0%	46.0%
2017	25	54/56	4.5	4.4	55.5%	71.4%	43.7%	54.1%	50.0%	59.1%	45.9%
2018	26	64/69	4.8	4.0	58.0%	69.1%	47.9%	51.8%	51.7%	60.0%	46.8%
2019	27	76/83	5.6	4.4	57.1%	72.6%	47.2%	58.5%	48.8%	61.8%	43.6%
2020	28	19/19	4.2	3.8	63.7%	68.3%	43.5%	59.6%	57.0%	59.1%	47.0%
2021	29	8/9	1.5	4.8	64.5%	58.8%	40.4%	44.2%	43.1%	51.9%	37.9%
Career		361/388	4.0	4.3	58.6%	67.8%	45.8%	54.1%	49.0%	58.5%	44.6%

Detailed serve and return statistics available for 361/388 (93.0%) of Kiki Bertens's WTA main draw matches.

Advanced Stats

Kiki Bertens 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
2011	19	1494	97.6	+1.77	-1.03	0.783	44.4%	—	—	—	0.0%	-3.00	—	0–1	—	-0.13
2012	20	1580	118.0	+0.05	-1.16	0.955	49.1%	-24	+11	+4	47.1%	-0.27	5–2 (71%)	3–1 (75%)	107.6	-0.87
2013	21	1551	121.8	-1.34	-0.74	0.952	48.8%	+33	+22	—	44.6%	-0.39	5–7 (42%)	3–3 (50%)	98.8	-1.04
2014	22	1580	124.4	-1.78	+0.96	0.993	49.7%	-23	+77	—	47.2%	-0.02	4–5 (44%)	3–3 (50%)	100.6	-0.24
2015	23	1520	114.8	-1.77	-2.92	0.837	46.5%	-52	+93	+82	34.5%	-1.07	2–7 (22%)	3–2 (60%)	95.7	-1.23
2016	24	1689	132.6	+2.91	+1.95	1.122	52.4%	-129	+137	-72	54.6%	+0.61	6–5 (55%)	6–5 (55%)	101.8	-1.68
2017	25	1696	135.9	+2.41	+1.24	1.122	52.6%	-173	+308	-130	54.9%	+0.68	3–8 (27%)	3–8 (27%)	90.8	+1.57
2018	26	1911	154.4	+3.14	+4.20	1.171	53.3%	-97	+80	-217	63.3%	+1.14	14–12 (54%)	10–15 (40%)	100.3	-1.83
2019	27	1897	153.7	+4.80	+1.58	1.142	52.4%	-14	+155	-90	65.1%	+0.95	18–13 (58%)	12–12 (50%)	102.5	+0.54
2020	28	1883	144.7	+1.90	+2.64	1.150	53.1%	+54	+91	—	65.1%	+1.09	5–2 (71%)	3–0 (100%)	105.1	+1.01
2021	29	1733	102.2	-2.11	-1.63	0.787	44.9%	+114	+208	—	20.0%	-2.00	0–2	—	—	+0.66
Career		2004	143.8	+2.04	+1.38	1.074	51.4%	-53	+144	-88	55.1%	+0.46	62–63 (50%)	46–50 (48%)	100.2	-0.84

Tournament Results by Category

Grand Slams

Kiki Bertens Grand Slams results by season
Season	Age	AO	RG	W	USO	W-L Win %
2012	20	—	R128	R64	R64	2–3 (40%)
2013	21	R128	R128	R128	R128	0–4 (0%)
2014	22	R128	R16	—	R128	3–3 (50%)
2015	23	R64	R128	R128	R64	2–4 (33%)
2016	24	R128	SF	R32	R128	7–4 (64%)
2017	25	R128	R64	R128	R128	1–4 (20%)
2018	26	R32	R32	QF	R32	10–4 (71%)
2019	27	R64	R64	R32	R32	6–4 (60%)
2020	28	R16	R16	—	—	6–2 (75%)
2021	29	—	R128	R128	—	0–2 (0%)
W-L		7–8 (47%)	15–10 (60%)	9–8 (53%)	6–8 (43%)	37–34 (52%)

WTA 1000

Kiki Bertens WTA 1000 results by season
Season	Age	BEI	CIN	DOH	DUB	IW	MAD	MIA	ITA	CAN	WUH	W-L Win %
2012	20	—	R64	—	—	—	—	—	—	R32	—	1–2 (33%)
2013	21	—	—	—	—	R64	R64	R64	R32	R32	—	4–5 (44%)
2014	22	—	—	—	—	—	—	R64	—	R64	—	1–2 (33%)
2015	23	—	—	—	—	R128	—	R128	—	—	—	0–2 (0%)
2016	24	—	R64	—	—	R128	—	R32	R64	—	—	3–4 (43%)
2017	25	R64	R32	—	R64	R32	QF	R64	SF	—	R32	10–8 (56%)
2018	26	R16	W	—	—	R64	F	R32	R64	QF	R32	18–7 (72%)
2019	27	SF	R32	—	R32	R16	W	R16	SF	R16	R16	19–8 (70%)
2020	28	—	—	R16	—	—	—	—	R32	—	—	1–2 (33%)
2021	29	—	—	—	R32	—	R32	R64	—	—	—	1–3 (25%)
W-L		6–3 (67%)	7–4 (64%)	1–1 (50%)	0–3 (0%)	5–6 (45%)	15–4 (79%)	7–8 (47%)	8–6 (57%)	6–5 (55%)	3–3 (50%)	58–43 (57%)

WTA 500

Kiki Bertens WTA 500 results by season
Season	Age	BRI	DOH	DUB	EAS	PAR	SPB	POR	CHA	MOS	NEW	STA	SYD	PAN	ZHE	W-L Win %
2013	21	—	—	—	—	SF	—	—	—	—	—	R32	—	—	—	3–2 (60%)
2014	22	—	—	—	—	—	—	—	R32	—	—	—	—	—	—	1–1 (50%)
2016	24	—	—	—	—	—	—	—	—	—	R32	—	—	—	—	0–1 (0%)
2017	25	—	R32	—	—	—	R32	R32	R16	—	R32	—	—	—	—	1–5 (17%)
2018	26	R32	—	R32	R32	—	R32	R32	W	R16	—	—	R16	—	—	7–7 (50%)
2019	27	R16	QF	—	SF	—	W	SF	R16	QF	—	—	SF	R16	R16	18–9 (67%)
2020	28	QF	—	—	—	—	W	—	—	—	—	—	—	—	—	6–1 (86%)
2021	29	—	R32	—	R32	—	—	—	—	—	—	—	—	—	—	0–2 (0%)
W-L		3–3 (50%)	2–3 (40%)	0–1 (0%)	3–3 (50%)	3–1 (75%)	8–2 (80%)	3–3 (50%)	9–3 (75%)	1–2 (33%)	0–2 (0%)	0–1 (0%)	4–2 (67%)	0–1 (0%)	0–1 (0%)	36–28 (56%)

WTA 250

Kiki Bertens WTA 250 results by season
Season	Age	ACO	ASB	BAD	BUC	DAL	GST	LIB	HKG	MAL	MRK	RIO	KOR	WAS	BAD	BOG	FES	FLO	HOB	JAP	KAT	LIN	LUX	MON	NUR	NUR	NÜR	OEI	PAL	MOR	STR	TAS	W-L Win %
2011	19	—	—	—	—	—	—	R32	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	0–1 (0%)
2012	20	—	—	R32	—	R32	—	R32	—	—	—	—	QF	—	—	—	W	—	—	—	—	R16	R32	—	—	—	—	—	R32	—	—	—	8–7 (53%)
2013	21	QF	QF	—	—	—	—	R32	—	—	QF	—	—	R32	R32	—	—	—	—	—	R16	—	—	—	—	—	—	R32	—	—	—	—	7–8 (47%)
2014	22	—	—	—	R16	—	—	—	R16	—	—	R16	R32	R32	—	—	—	R16	—	—	—	R32	QF	—	—	—	—	—	—	—	—	—	6–8 (43%)
2015	23	R16	R32	R32	—	—	—	SF	—	—	—	—	R32	—	—	—	—	—	—	R32	R32	R32	—	R32	R16	—	—	—	—	—	—	R32	5–11 (31%)
2016	24	R32	R32	R32	—	—	F	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	R32	SF	Q2	—	W	—	—	—	SF	—	—	21–8 (72%)
2017	25	—	R32	R16	—	—	W	R32	—	R32	—	—	R32	—	—	QF	—	—	QF	—	—	R32	QF	—	—	—	W	—	—	—	—	—	18–9 (67%)
2018	26	—	—	—	—	—	—	R16	—	—	—	—	W	—	—	—	—	—	—	—	—	R16	—	—	—	QF	—	—	—	—	—	—	9–3 (75%)
2019	27	—	—	—	—	—	—	F	—	—	—	—	—	—	—	—	—	—	—	—	—	QF	—	—	—	—	—	—	F	—	—	—	10–3 (77%)
2020	28	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	R16	—	0–1 (0%)
W-L		3–3 (50%)	2–4 (33%)	1–4 (20%)	1–1 (50%)	0–1 (0%)	9–1 (90%)	8–7 (53%)	1–1 (50%)	0–1 (0%)	2–1 (67%)	1–1 (50%)	7–4 (64%)	0–2 (0%)	0–1 (0%)	2–1 (67%)	5–0 (100%)	1–1 (50%)	6–2 (75%)	0–1 (0%)	1–2 (33%)	4–7 (36%)	7–4 (64%)	2–1 (67%)	1–1 (50%)	7–1 (88%)	6–0 (100%)	0–1 (0%)	4–2 (67%)	3–1 (75%)	0–1 (0%)	0–1 (0%)	84–59 (59%)

WTA Finals

Kiki Bertens WTA Finals results by season
Season	Age	ZHU	WTA	W-L Win %
2016	24	RR	—	0–2 (0%)
2018	26	—	SF	2–2 (50%)
2019	27	F	RR	4–2 (67%)
W-L		3–3 (50%)	3–3 (50%)	6–6 (50%)

Results show the best round reached per tournament and season.

WTA Ranking History full ranking history →

Career high

Career-high date

May 13, 2019

First Top 100

Apr 30, 2012

First Top 50

Feb 4, 2013

First Top 20

Feb 27, 2017

First Top 10

Oct 8, 2018

Ranking History Matrix

Kiki Bertens ranking history by month and season
Season	Age	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2008	16	—	—	—	—	—	—	—	—	968	972	980	978
2009	17	973	969	959	943	957	831	859	756	670	576	545	542
2010	18	543	546	507	448	437	439	351	276	267	228	225	219
2011	19	213	213	214	197	178	179	177	174	172	199	185	182
2012	20	167	172	153	92	91	86	78	74	60	58	63	63
2013	21	65	47	42	58	55	60	68	67	82	88	88	87
2014	22	88	119	135	151	148	86	77	84	77	70	68	68
2015	23	72	73	71	85	84	108	114	110	91	105	105	104
2016	24	95	111	108	97	58	28	21	22	23	22	22	22
2017	25	24	20	21	20	18	24	27	27	30	31	31	—
2018	26	28	29	29	20	22	20	18	13	11	9	9	9
2019	27	8	7	8	7	4	4	5	7	8	10	9	9
2020	28	10	6	7	—	—	—	—	7	8	9	9	9
2021	29	10	11	11	10	17	21	24	25	—	—	—	—

Similar Players

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

Kiki Bertens's most statistically similar WTA players
Player	Country	Peak ranking	Peak Elo	M	W	L	Win %	Prize money	Titles	GS	W1000	Years	Rivalries	Match log
Caroline Garcia (active player)	FRA	#4	2,002	605	337	268	55.7%	$18,778,616	11	0	3	2011–2025	Rivalries	Match log
Samantha Stosur	AUS	#4	2,072	804	459	345	57.1%	$20,070,126	9	1	0	2002–2022	Rivalries	Match log
Johanna Konta	GBR	#4	2,019	301	179	122	59.5%	$10,008,175	4	0	1	2011–2021	Rivalries	Match log
Belinda Bencic (active player)	SUI	#4	2,035	502	310	192	61.8%	$17,371,250	10	0	2	2012–2026	Rivalries	Match log
Dominika Cibulkova	SVK	#4	1,964	633	368	265	58.1%	$13,725,520	8	0	0	2006–2019	Rivalries	Match log
Sara Errani (active player)	ITA	#5	2,005	691	387	304	56.0%	$18,263,851	9	0	0	2006–2025	Rivalries	Match log
Francesca Schiavone	ITA	#4	1,965	815	445	370	54.6%	$11,324,245	8	1	0	1999–2018	Rivalries	Match log
Sloane Stephens (active player)	USA	#3	1,952	553	304	249	55.0%	$19,621,719	8	1	1	2010–2026	Rivalries	Match log
Sofia Kenin (active player)	USA	#4	1,980	328	175	153	53.4%	$12,774,132	5	1	0	2015–2026	Rivalries	Match log
Madison Keys (active player)	USA	#5	2,134	591	374	217	63.3%	$25,287,737	11	1	1	2009–2026	Rivalries	Match log
Kimiko Date	JPN	#4	2,092	435	245	190	56.3%	$3,988,378	8	0	1	1989–2017	Rivalries	Match log
Jasmine Paolini (active player)	ITA	#4	2,056	314	176	138	56.1%	$16,540,509	3	0	2	2017–2026	Rivalries	Match log

Frequently Asked Questions

How old is Kiki Bertens?: Kiki Bertens is 34 years old, born on December 10, 1991.
Which country does Kiki Bertens represent?: Kiki Bertens represents Netherlands in TennisDB's WTA records.
How tall is Kiki Bertens?: Kiki Bertens is 182 cm / 6'0".
Does Kiki Bertens use a one-handed or two-handed backhand?: Kiki Bertens uses a two-handed backhand.
Is Kiki Bertens left-handed or right-handed?: Kiki Bertens plays right-handed.
How many Grand Slam singles titles has Kiki Bertens won?: Kiki Bertens has not won a Grand Slam singles title.
How many WTA 1000 titles has Kiki Bertens won?: TennisDB groups 2 of Kiki Bertens's titles under the modern WTA 1000 category. All 2 were won under documented predecessor category names and are shown using the modern equivalent. The most recent was Madrid in 2019.
How many WTA titles has Kiki Bertens won?: Kiki Bertens has won 11 WTA singles titles across all categories. The most recent was St. Petersburg in 2020.
What is Kiki Bertens' highest WTA ranking?: Kiki Bertens' career-high WTA singles ranking is world No. 4, first achieved on May 13, 2019.
What is Kiki Bertens' career win-loss record?: Kiki Bertens has a career WTA singles record of 216 wins and 172 losses (55.7%).
How much career prize money has Kiki Bertens earned?: Kiki Bertens has earned at least $11,653,189 in career prize money from professional tennis.
Which seasons of Kiki Bertens's career appear in TennisDB?: Kiki Bertens appears in TennisDB's WTA main-tour match records from 2011 through 2021.
On which surface does Kiki Bertens have the highest recorded win rate?: Among surfaces with at least 20 recorded matches, Kiki Bertens's highest WTA main-draw win rate is on clay: 67.9% (95–45).
Who has Kiki Bertens faced most often?: Kiki Bertens' most frequent opponent is Mona Barthel, with a head-to-head record of 3–6 across 9 meetings.