Mihaela Buz?rnescu

Buz?rnescu in 2017
Country (sports)	Romania
Residence	Bucharest, Romania
Born	(1988-05-04) 4 May 1988 (age 34) Bucharest, Romania
Height	1.75 m (5 ft 9 in)
Turned pro	2004
Plays	Left (two-handed backhand)
Coach	Artemon Apostu-Efremov, Mihai Buz?rnescu (father)
Prize money	US$ 2,543,036
Singles
Career record	418-243 (63.2%)
Career titles	1
Highest ranking	No. 20 (6 August 2018)
Current ranking	No. 125 (25 April 2022)
Grand Slam singles results
Australian Open	1R (2018, 2019, 2021)
French Open	4R (2018)
Wimbledon	3R (2018)
US Open	1R (2017, 2019, 2020)
Other tournaments
Olympic Games	2R (2021)
Doubles
Career record	314-176 (64.1%)
Career titles	2
Highest ranking	No. 24 (22 October 2018)
Current ranking	No. 120 (3 January 2022)
Grand Slam doubles results
Australian Open	2R (2019)
French Open	QF (2018)
Wimbledon	QF (2018)
Grand Slam mixed doubles results
Australian Open	1R (2019)
French Open	1R (2018, 2019)
Wimbledon	2R (2018)
Team competitions
Fed Cup	3-8
Scientific career
Thesis	Optimizarea jocului de tenis la juniori U12-U14 prin dezvoltarea capacitilor motrice ?i psihomotrice (2016)
Doctoral advisor	Gheorghe Marinescu
Last updated on: 4 January 2022.

Mihaela Buz?rnescu (born 4 May 1988) is a Romanian professional tennis player.

She has a career-high WTA singles ranking of No. 20, achieved on 6 August 2018. Her best doubles ranking of world No. 24, she reached on 22 October 2018. She has won one singles and two doubles titles on the WTA Tour.

Buz?rnescu has a Ph.D. in sports science from the National University of Physical Education and Sport.^[1]

Career highlights

Junior success

Buz?rnescu played her first professional match in 2004.^[2] She then won the junior doubles title at the 2006 US Open with Raluca Olaru. Seeded No. 2, they defeated the top-seeded pair of Sharon Fichman and Anastasia Pavlyuchenkova in the final.^[3]

Injuries and hiatus

Shoulder and knee injuries (the latter prompting two surgeries) forced her off the pro tour for years, long enough that she went back to school,^[4] graduating a doctorate at the National University of Physical Education and Sport in December 2016.

2017-2018: Grand Slam & Top 100 debut, first WTA titles, World No. 20

In 2017, she qualified to make her Grand Slam main draw debut at the 2017 US Open (tennis). In October 2017, Buz?rnescu got to the semifinals of the Linz Open.

In 2018, she reached the finals in Hobart and Prague. At the Internationaux de Strasbourg, she surrendered a lead in the singles semifinals against Dominika Cibulková, eventually losing the match in three sets.^[5] She showed more consistency in the doubles, winning the tournament and her first WTA title with compatriot Raluca Olaru in straight sets against Nadiia Kichenok and Anastasia Rodionova.^[6]

Buz?rnescu then played her first French Open, which was also the first Grand Slam tournament, she was seeded. She defeated Vania King in the first round for her first Grand Slam win. Afterwards, she also won versus Rebecca Peterson. Against No. 4 seed Elina Svitolina in the third round, Buz?rnescu won the match in straight sets. This was her biggest career victory and one of the tournament's bigger upsets. She faced No. 13 seed Madison Keys in the fourth round, and lost in two sets.

In the grass-court season, Buz?rnescu reached the quarterfinals of the Nature Valley Open in Nottingham, losing to Naomi Osaka. She also played in the doubles tournament with British partner Heather Watson, losing in the final. At the Birmingham Classic, she once again defeated No. 2 seed Svitolina before losing to eventual champion Petra Kvitová in the semifinals. Buz?rnescu then played for a third consecutive week in Eastbourne. She reached the last 16 before losing to Je?ena Ostapenko. However, she reached the doubles final with partner Irina-Camelia Begu.

In August, Buz?rnescu captured her first WTA Tour singles title winning in San Jose with a straight-set victory over Maria Sakkari in the final. Later in August, she played Elina Svitolina once more in the second round of the Rogers Cup in Montreal but suffered a serious ankle injury and was forced to retire. This injury kept her out of the game for two months including the US Open but she did reach her best ever ranking of No. 20 in the world on 6 August 2018. Buz?rnescu ended the year ranked 24.

2019-2021: Italian Open third round, out of top 100, Olympics debut

She began season at the Brisbane International where she lost in the first round to eventual finalist Lesia Tsurenko.^[7] Seeded second and last year finalist at the Hobart International, she was defeated in the first round by Belinda Bencic.^[8] Seeded 25th at the Australian Open, she lost her first-round match to seven-time Grand Slam winner and former world number one, Venus Williams.^[9]

In February, Buz?rnescu represented Romania in the Fed Cup tie against the Czech Republic. She lost both of her rubbers to Karolína Plí?ková and Kate?ina Siniaková. In the end, Romania still won 3-2.^[10] At the Qatar Open, she was defeated in the first round by 2016 finalist Je?ena Ostapenko.^[11] In Dubai, she lost in the first round to Sofia Kenin.^[12] Seeded fourth at the Abierto Mexicano, she was defeated in the second round by Bianca Andreescu. At the 2019 Italian Open (tennis) she reached the third round for the first time at this WTA level where she lost to top seed Naomi Osaka.

Performance timelines

Only main-draw results in WTA Tour, Grand Slam tournaments, Fed Cup/Billie Jean King Cup and Olympic Games are included in win-loss records.^[13]

Singles

Current through the 2022 BJKC QR.

Doubles

Mixed doubles

Junior Grand Slam tournament finals

Doubles: 1 (1 title)

Result	Year	Tournament	Surface	Partner	Opponents	Score
Win	2006	US Open	Hard	Raluca Olaru	Sharon Fichman Anastasia Pavlyuchenkova	7-5, 6-2

WTA career finals

Singles: 3 (1 title, 2 runner-ups)

Result	W-L	Date	Tournament	Tier	Surface	Opponent	Score
Loss	0-1	Jan 2018	Hobart International, Australia	International	Hard	Elise Mertens	1-6, 6-4, 3-6
Loss	0-2	May 2018	Prague Open, Czech Republic	International	Clay	Petra Kvitová	6-4, 2-6, 3-6
Win	1-2	Jul 2018	Silicon Valley Classic, United States	Premier	Hard	Maria Sakkari	6-1, 6-0

Doubles: 6 (2 titles, 4 runner-ups)

Result	W-L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Loss	0-1	May 2018	Prague Open, Czech Republic	International	Clay	Lidziya Marozava	Nicole Melichar Kv?ta Peschke	4-6, 2-6
Win	1-1	May 2018	Internationaux de Strasbourg, France	International	Clay	Raluca Olaru	Nadiia Kichenok Anastasia Rodionova	7-5, 7-5
Loss	1-2	June 2018	Nottingham Open, United Kingdom	International	Grass	Heather Watson	Alicja Rosolska Abigail Spears	3-6, 6-7(5-7)
Loss	1-3	June 2018	Eastbourne International, United Kingdom	Premier	Grass	Irina-Camelia Begu	Gabriela Dabrowski Xu Yifan	3-6, 5-7
Loss	1-4	Apr 2021	Copa Colsanitas, Colombia	WTA 250	Clay	Anna-Lena Friedsam	Elixane Lechemia Ingrid Neel	3-6, 4-6
Win	2-4	Jul 2021	Budapest Grand Prix, Hungary	WTA 250	Clay	Fanny Stollár	Aliona Bolsova Tamara Korpatsch	6-4, 6-4

ITF Circuit finals

Singles: 31 (23 titles, 8 runner-ups)

Result	W-L	Date	Tournament	Tier	Surface	Opponent	Score
Win	1-0	Jun 2004	ITF Pite?ti, Romania	10,000	Clay	Liana Balaci	6-3, 7-6(7-4)
Win	2-0	Jun 2004	ITF Bra?ov, Romania	10,000	Clay	Andrea Benítez	6-3, 7-5
Win	3-0	May 2006	ITF La Palma, Spain	25,000	Hard	Nadja Pavi?	6-3, 6-7(4-7), 6-3
Loss	3-1	May 2007	ITF Rabat, Morocco	10,000	Clay	Yuliya Kalabina	1-6, 1-6
Win	4-1	Jun 2008	ITF Pite?ti, Romania	10,000	Clay	Palma Kiraly	6-0, 6-3
Win	5-1	Jun 2008	ITF Bucharest, Romania	10,000	Clay	Federica Di Sarra	6-2, 6-2
Loss	5-2	Mar 2010	ITF Antalya, Turkey	10,000	Clay	Valentyna Ivakhnenko	3-6, 0-6
Win	6-2	Aug 2010	ITF One?ti, Romania	10,000	Clay	Ionela-Andreea Iova	6-0, 6-1
Loss	6-3	Aug 2010	ITF Bucharest, Romania	10,000	Clay	Ingrid-Alexandra Radu	5-7, 6-1, 3-6
Win	7-3	Aug 2010	ITF Bal?, Romania	10,000	Clay	Alexandra Cadan?u	6-3, 6-2
Loss	7-4	Dec 2010	ITF Dubai, United Arab Emirates	10,000	Hard	Marta Sirotkina	0-6, 0-6
Win	8-4	May 2011	ITF ?zmir, Turkey	25,000	Hard	Naomi Broady	7-5, 6-4
Win	9-4	July 2011	ITF Craiova, Romania	25,000	Clay	Annalisa Bona	6-2, 3-6, 6-4
Win	10-4	July 2011	ITF Zwevegem, Belgium	25,000	Clay	Bibiane Schoofs	3-6, 6-2, 6-4
Win	11-4	Sep 2014	ITF Bucharest, Romania	10,000	Clay	Simona Ionescu	6-3, 2-6, 6-1
Win	12-4	Mar 2015	ITF Port El Kantaoui, Tunisia	10,000	Hard	Lou Brouleau	6-0, 6-1
Win	13-4	Apr 2015	ITF Port El Kantaoui	10,000	Hard	Natalija Sipek	6-1, 6-0
Win	14-4	Aug 2015	ITF Westende, Belgium	25,000	Hard	Océane Dodin	6-1, 6-1
Loss	14-5	Nov 2015	ITF Zawada, Poland	25,000	Carpet (i)	Ivana Jorovi?	2-6, 2-6
Win	15-5	Dec 2015	ITF Cairo, Egypt	25,000	Clay	Valentyna Ivakhnenko	6-0, 6-3
Win	16-5	Jun 2017	ITF Hódmez?vásárhely, Hungary	60,000	Clay	Danka Kovini?	6-2, 6-1
Win	17-5	Jun 2017	ITF ?zmir, Turkey	60,000	Hard	Eri Hozumi	6-1, 6-0
Win	18-5	Jul 2017	ITF Getxo, Spain	25,000	Clay	Renata Zarazúa	6-2, 6-2
Win	19-5	Jul 2017	ITF Versmold, Germany	60,000	Clay	Barbara Haas	6-0, 6-2
Loss	19-6	Aug 2017	ITF Foxhills, UK	25,000	Hard	Jasmine Paolini	4-6, 6-1, 4-6
Win	20-6	Sep 2017	ITF Biarritz, France	80,000	Clay	Patty Schnyder	6-4, 6-3
Win	21-6	Oct 2017	ITF Poitiers, France	100,000	Hard (i)	Alison Van Uytvanck	6-4, 6-2
Loss	21-7	Nov 2017	ITF Tokyo, Japan	100,000	Hard	Zhang Shuai	4-6, 0-6
Win	22-7	Nov 2017	ITF Toyota, Japan	60,000+H	Carpet (i)	Tamara Zidan?ek	6-0, 6-1
Loss	22-8	Sep 2021	ITF Valencia, Spain	80,000	Clay	Arantxa Rus	4-6, 6-7(3-7)
Win	23-8	Oct 2021	ITF Neubourg, France	80,000+H	Hard	Anna Bondár	6-1, 6-3

Doubles: 56 (34 titles, 22 runner-ups)

Result	W-L	Date	Tournament	Tier	Surface	Partner	Opponents	Score
Win	1-0	Jun 2004	ITF Constan?a, Romania	10,000	Clay	Gabriela Niculescu	Bianca Bonifate Diana Gae	6-4, 6-3
Win	2-0	Jun 2004	ITF Pite?ti, Romania	10,000	Clay	Gabriela Niculescu	Andrea Benítez Estefania Craciún	6-4, 6-4
Loss	2-1	Apr 2005	ITF Mumbai, India	10,000	Hard	Sanaa Bhambri	Chan Chin-wei Julia Efremova	2-6, 1-6
Loss	2-2	Jul 2006	ITF Båstad, Sweden	25,000	Clay	Magda Mihalache	Erica Krauth Aurélie Védy	6-2, 4-6, 4-6
Loss	2-3	Aug 2006	ITF Moscow, Russia	25,000	Clay	Evgeniya Rodina	Maria Kondratieva Ekaterina Makarova	6-4, 4-6, 1-6
Loss	2-4	Apr 2007	ITF Split, Croatia	10,000	Clay	Antonia Xenia Tout	Olga Brózda Natalia Ko?at	2-6, 1-6
Win	3-4	Apr 2007	ITF Hvar, Croatia	10,000	Clay	Magdalena Kiszczy?ska	Émilie Bacquet Karolina Jovanovi?	6-4, 6-2
Loss	3-5	Apr 2007	ITF Bol Open, Croatia	10,000	Clay	Nadja Roma	Iveta Gerlová Lucie Kriegsmannová	3-6, 5-7
Win	4-5	May 2007	ITF Rabat, Morocco	10,000	Clay	Melanie Klaffner	Silvia Disderi Samia Medjahdi	6-1, 6-4
Loss	4-6	Aug 2007	ITF Bucharest, Romania	25,000	Clay	Monica Niculescu	Sorana Cîrstea Ágnes Szatmári	w/o
Loss	4-7	Aug 2007	ITF Penza, Russia	50,000	Clay	Veronika Kapshay	Sophie Lefèvre Ágnes Szatmári	1-6, 2-6
Win	5-7	Sep 2007	ITF Sofia, Bulgaria	25,000	Clay	Magdalena Kiszczy?ska	Joana Cortez Teliana Pereira	6-4, 6-7(2-7), [10-4]
Win	6-7	Sep 2007	ITF Batumi, Georgia	25,000	Hard	Vojislava Luki?	Vasilisa Davydova Marina Shamayko	6-2, 6-4
Win	7-7	Jun 2008	ITF Pite?ti, Romania	10,000	Clay	Laura-Ioana Andrei	Simona Matei Valentina Sulpizio	7-5, 3-6, [10-2]
Win	8-7	Jun 2008	ITF Bucharest, Romania	10,000	Clay	Laura-Ioana Andrei	Benedetta Davato Valentina Sulpizio	6-4, 4-6, [10-6]
Loss	8-8	Jul 2008	ITF Toru?, Poland	25,000	Clay	Anastasia Pivovarova	Olga Brózda Magdalena Kiszczy?ska	6-4, 4-6, [2-10]
Win	9-8	Jul 2008	ITF Kharkiv, Ukraine	25,000	Clay	Oksana Kalashnikova	Kristina Antoniychuk Lesia Tsurenko	6-1, 6-4
Win	10-8	Jun 2009	ITF Bucharest, Romania	10,000	Clay	Elora Dabija	Laura-Ioana Andrei Ioana Gaspar	1-6, 7-5, [10-5]
Win	11-8	Oct 2009	ITF Belek, Turkey	10,000	Clay	Kate?ina Va?ková	Magali de Lattre Fatima El Allami	6-1, 6-1
Win	12-8	Nov 2009	ITF Le Havre, France	10,000	Clay	Marina Melnikova	Amandine Hesse Alizé Lim	6-2, 7-6(7-4)
Win	13-8	Nov 2009	ITF Cairo, Egypt	25,000	Clay	Laura Thorpe	Fatma Al-Nabhani Galina Fokina	6-4, 6-0
Loss	13-9	Mar 2010	ITF Antalya, Turkey	10,000	Clay	Alenka Hubacek	Yuliya Beygelzimer Anna Gerasimou	w/o
Win	14-9	Apr 2010	ITF Antalya, Turkey	10,000	Clay	Dalia Zafirova	Veronika Chvojková Martina Kubi?íková	7-6(7-1), 7-5
Win	15-9	Apr 2010	ITF Vic, Spain	10,000	Clay	Cristina Stancu	Olga Brózda Barbara Sobaszkiewicz	7-5, 3-6, [10-7]
Win	16-9	Aug 2010	ITF One?ti, Romania	10,000	Clay	Laura-Ioana Andrei	Camelia Hristea Biljana Pavlova	7-6(9-7), 6-2
Win	17-9	Aug 2010	ITF Bucharest, Romania	10,000	Clay	Laura-Ioana Andrei	Diana Enache Camelia Hristea	6-1, 6-3
Win	18-9	Sep 2010	ITF Podgorica, Montenegro	25,000	Clay	Irina-Camelia Begu	Valeria Solovieva Maryna Zanevska	5-7, 7-5, [12-10]
Loss	18-10	Oct 2010	ITF Kharkiv, Ukraine	25,000	Clay	Marina Shamayko	Anna Piven Anastasiya Vasylyeva	4-6, 4-6
Win	19-10	May 2011	ITF Wiesbaden, Germany	10,000	Clay	Karolina Wlodarczak	Dejana Raickovic Ghislaine van Baal	6-7(4-7), 6-3, [10-6]
Loss	19-11	May 2011	ITF ?zmir, Turkey	25,000	Hard	Tereza Mrde?a	Naomi Broady Lisa Whybourn	6-3, 6-7(4-7), [7-10]
Win	20-11	Jun 2011	ITF Florence, Italy	10,000	Clay	Zuzana Zlochová	Nicole Clerico Valentina Sulpizio	6-3, 6-4
Loss	20-12	Jul 2011	ITF Craiova, Romania	25,000	Clay	Elena Bogdan	Diana Enache Daniëlle Harmsen	6-4, 6-7(5-7), [6-10]
Win	21-12	Jul 2011	ITF Samsun, Turkey	25,000	Hard	Tadeja Majeri?	Ça?la Büyükakçay Pemra Özgen	6-1, 6-4
Win	22-12	Sep 2011	ITF Saransk, Russia	50,000	Clay	Teodora Mir?i?	Eva Hrdinová Veronika Kapshay	6-3, 6-1
Loss	22-13	Sep 2011	ITF Zagreb, Croatia	50,000	Clay	Maria Abramovi?	Maria João Koehler Katalin Marosi	0-6, 3-6
Win	23-13	Oct 2011	ITF Telavi, Georgia	50,000	Clay	Elena Bogdan	Ekaterine Gorgodze Anastasia Grymalska	1-6, 6-1, [10-3]
Loss	23-14	Feb 2012	ITF Surprise, United States	25,000	Hard	Valeria Solovieva	Maria Sanchez Yasmin Schnack	4-6, 3-6
Win	24-14	July 2012	ITF Zwevegem, Belgium	25,000	Clay	Nicola Geuer	Kim Kilsdonk Nicolette van Uitert	7-6(7-5), 1-6, [10-4]
Win	25-14	Sep 2012	ITF Mont-de-Marsan, France	25,000	Clay	Timea Bacsinszky	Teliana Pereira Aleksandrina Naydenova	6-4, 6-1
Loss	25-15	Mar 2015	ITF Port El Kantaoui, Tunisia	10,000	Hard	Olena Kyrpot	Inês Murta Melanie Stokke	1-6, 5-7
Win	26-15	Mar 2015	ITF Port El Kantaoui	10,000	Hard	Olena Kyrpot	Jennifer Claffey Kathinka von Deichmann	6-4, 6-2
Win	27-15	Apr 2015	ITF Pula, Italy	25,000	Clay	Irina Bara	Corinna Dentoni Claudia Giovine	6-3, 2-6, [10-4]
Win	28-15	Oct 2015	ITF Saguenay, Canada	50,000	Hard (i)	Justyna Jegio?ka	Sharon Fichman Maria Sanchez	7-6(8-6), 4-6, [10-7]
Win	29-15	Nov 2015	ITF Zawada, Poland	25,000	Carpet (i)	Justyna Jegio?ka	Kim Grajdek Ekaterina Yashina	6-2, 6-3
Loss	29-16	Sep 2016	ITF Mamaia, Romania	25,000	Clay	Irina Bara	Vivien Juhászová Kate?ina Kramperová	6-7(3-7), 6-2, [7-10]
Loss	29-17	Sep 2016	ITF Bucha, Ukraine	25,000	Clay	Alexandra Perper	Valentyna Ivakhnenko Anastasiya Komardina	3-6, 1-6
Win	30-17	Oct 2016	ITF Saguenay, Canada	50,000	Hard (i)	Elena Bogdan	Bianca Andreescu Charlotte Robillard-Millette	6-4, 6-7(4-7), [10-6]
Win	31-17	Oct 2016	ITF Tampico, Mexico	50,000	Hard	Elise Mertens	Usue Maitane Arconada Katie Swan	6-0, 6-2
Loss	31-18	Nov 2016	ITF Waco, U.S.	50,000	Hard	Renata Zarazúa	Michaëlla Krajicek Taylor Townsend	w/o
Win	32-18	May 2017	ITF Dunakeszi, Hungary	25,000	Clay	Irina Bara	Daiana Negreanu Oana Georgeta Simion	1-6, 6-1, [10-3]
Loss	32-19	Jul 2017	ITF Prague, Czech Republic	80,000	Clay	Alona Fomina	Anastasia Potapova Dayana Yastremska	2-6, 2-6
Loss	32-20	Aug 2017	ITF Foxhills, UK	25,000	Hard	Justyna Jegio?ka	Laura-Ioana Andrei Petra Krejsová	6-4, 2-6, [9-11]
Win	33-20	Sep 2017	ITF Biarritz, France	80,000	Clay	Irina Bara	Cristina Buc?a Isabelle Wallace	6-3, 6-1
Loss	33-21	Sep 2017	ITF Saint Malo, France	60,000	Clay	Irina Bara	Di?na Marcink?vi?a Daniela Seguel	3-6, 3-6
Loss	33-22	Oct 2017	ITF Poitiers, France	100,000	Hard (i)	Nicola Geuer	Belinda Bencic Yanina Wickmayer	6-7(7-9), 3-6
Win	34-22	Dec 2017	ITF Dubai, UAE	100,000+H	Hard	Alena Fomina	Lesley Kerkhove Lidziya Marozava	6-4, 6-3

Record against other players

Buz?rnescu's record against players who have been ranked in the top 10. Active players are in boldface.^[14]

Player	Record	Win%	Hard	Clay	Grass	Last Match
Number 1 ranked players
Iga ?wi?tek	0-1	0%	0-1	-	-	Lost (1-6, 0-6) at 2022 BJKC QR
Serena Williams	0-1	0%	-	0-1	-	Lost (3-6, 7-5, 1-6) at 2021 French Open
Garbiñe Muguruza	0-1	0%	-	0-1	-	Lost (4-6, 3-6) at 2012 Acapulco Qualifying
Simona Halep	0-2	0%	-	0-1	0-1	Lost (3-6, 6-4, 2-6) at 2019 Wimbledon
Naomi Osaka	0-2	0%	-	0-1	0-1	Lost (3-6, 3-6) at 2019 Rome
Maria Sharapova	0-2	0%	0-1	0-1	-	Lost (4-6, 1-6) at 2018 Madrid
Venus Williams	0-2	0%	0-1	-	0-1	Lost (5-7, 6-4, 3-6) at 2021 Wimbledon
Caroline Wozniacki	0-3	0%	0-2	0-1	-	Lost (4-6, 6-3, 3-6) at 2019 Charleston
Karolína Plí?ková	0-4	0%	0-1	-	0-3	Lost (3-6, 4-6) at 2019 Birmingham
Number 2 ranked players
Aryna Sabalenka	1-2	33%	0-1	0-1	1-0	Won (6-7(3-7), 6-1, 6-4) at 2018 Wimbledon
Svetlana Kuznetsova	0-1	0%	-	0-1	-	Lost (4-6, 2-6) at 2019 Prague
Barbora Krej?íková	0-1	0%	-	0-1	-	Lost (2-6, 2-6) at 2015 Bursa
Petra Kvitová	0-2	0%	-	0-1	0-1	Lost (3-6, 2-6) at 2018 Birmingham
Number 3 ranked players
Maria Sakkari	1-0	100%	1-0	-	-	Won (6-1, 6-0) at 2018 San Jose
Elina Svitolina	2-1	67%	0-1	1-0	1-0	Lost (3-6, 7-6(7-5), 3-4, ret.) at 2018 Montréal
Sloane Stephens	0-1	0%	0-1	-	-	Lost (3-6, 3-6) at 2020 US Open
Number 4 ranked players
Kiki Bertens	1-1	50%	-	0-1	1-0	Won (3-6, 7-6(7-5), 6-3) at 2018 Eastbourne
Paula Badosa	2-2	50%	1-0	1-2	-	Lost (0-6, 4-6) at 2021 Belgrade
Bianca Andreescu	1-2	33%	1-2	-	-	Lost (2-6, 6-4, 3-6) at 2021 Australian Open
Belinda Bencic	1-2	33%	1-2	-	-	Lost (6-4, 3-6, 5-7) at 2019 Hobart
Dominika Cibulková	0-2	0%	-	0-2	-	Lost (6-2, 6-7(5-7), 1-6) at 2018 Strasbourg
Caroline Garcia	0-2	0%	0-1	0-1	-	Lost (1-6, 2-6) at 2021 Miami
Sofia Kenin	0-1	0%	0-1	-	-	Lost (3-6, 0-6) at 2019 Dubai
Number 5 ranked players
Anett Kontaveit	1-0	100%	1-0	-	-	Won (7-6(10-8), 6-3) at 2017 Linz
Je?ena Ostapenko	2-3	40%	1-1	1-0	0-2	Lost (4-6, 4-6) at 2019 Eastbourne
Sara Errani	0-1	0%	-	0-1	-	Lost (6-3, 6-7(5-7), 2-6) at 2018 Charleston
Number 7 ranked players
Patty Schnyder	3-0	100%	-	3-0	-	Won (1-6, 6-2, 6-3) at 2017 Saint-Malo
Madison Keys	0-1	0%	-	0-1	-	Lost (1-6, 4-6) at 2018 French Open
Number 9 ranked players
CoCo Vandeweghe	1-0	100%	1-0	-	-	Won (7-6(7-4), 6-7(5-7), 6-2) at 2021 Guadalajara
Julia Görges	1-2	33%	0-1	1-1	-	Won (6-4, 3-6, 4-4, ret.) at 2019 Rome
Andrea Petkovic	0-2	0%	0-1	0-1	-	Lost (3-6, 4-6) at 2019 US Open
Number 10 ranked players
Daria Kasatkina	0-2	0%	0-2	-	-	Lost (1-6, 1-6) at 2021 Melbourne
Kristina Mladenovic	0-1	0%	0-1	-	-	Lost (7-5, 5-7, 2-6) at 2021 Lyon
Total	17-50	25%	7-21 (25%)	7-20 (26%)	3-9 (25%)	Last updated 23 December 2021

Top 10 wins

#	Player	Rank	Event	Surface	Rd	Score
2018
1.	Je?ena Ostapenko	No. 6	Qatar Open, Qatar	Hard	2R	6-1, 6-3
2.	Elina Svitolina	No. 4	French Open, France	Clay	3R	6-3, 7-5
3.	Elina Svitolina	No. 5	Birmingham Classic, UK	Grass	QF	6-3, 6-2

Notes

References

External links

• Mihaela Buz?rnescu at the Women's Tennis Association
• Mihaela Buz?rnescu at the International Tennis Federation
• Mihaela Buz?rnescu at the Billie Jean King Cup