Katarzyna Piter

Piter played for Poland in the 2009 Europe/Africa Zone I of the Fed Cup and helped them qualify for the World Group II play-offs against Japan. In the round robin stage she lost her match against Monica Niculescu of Romania, won against Johanna Larsson of Sweden, beat Dijana Stojic of Bosnia and Herzegovina and paired up with Klaudia Jans to beat the Bosnian pairing. In the first play-off against Great Britain she lost the first singles match to Elena Baltacha 6–4 6–1. Poland, however, won that tie.

Piter and Kristina Mladenovic defeating Karolína Plíšková & Kristýna Plíšková on 2013 Internazionali Femminili di Palermo 6–1, 5–7, [10–8] to win her first WTA title of any kind.

Doubles: 4 (1–3)

Outcome	No.	Date	Tournament	Surface	Pertner	Opponents	Score
Runner-up	1.	12 June 2011	Danish Open, Copenhagen, Denmark	Hard	Kristina Mladenovic	Johanna Larsson Jasmin Wöhr	6–3, 6–3
Winner	1.	13 July 2013	Internazionali Femminili di Palermo, Palermo, Italy	Clay	Kristina Mladenovic	Karolína Plíšková Kristýna Plíšková	6–1, 5–7, [10–8]
Runner-up	2.	27 April 2014	Grand Prix SAR La Princesse Lalla Meryem, Marrakesh, Morocco	Clay	Maryna Zanevska	Garbiñe Muguruza Romina Oprandi	6–4, 2–6, [9–11]
Runner-up	3.	17 July 2016	BRD Bucharest Open, Bucharest, Romania	Clay	Alexandra Cadanțu	Jessica Moore Varatchaya Wongteanchai	3–6, 6–7(5–7)

Singles (8-10)

Outcome	No.	Date	Tournament	Surface	Opponent	Score
Runner-up	1.	14 May 2007	Michalovce, Slovakia	Clay	Kristína Kučová	6–2, 3–6, 4–6
Winner	1.	13 August 2007	Bielefeld, Germany	Clay	Dominice Ripoll	3–6, 6–3, 6–4
Winner	2.	17 March 2008	Ain Sukhna, Egypt	Clay	Irina-Camelia Begu	7–6(9–7), 6–4
Winner	3.	24 March 2008	Cairo, Egypt	Clay	Bibiane Schoofs	6–1, 6–3
Winner	4.	10 November 2008	Jersey, Great Britain	Hard	Stefania Boffa	6–2, 6–2
Runner-up	2.	6 July 2009	Brussels, Belgium	Clay	Maryna Zanevska	6–0, 5–7, 5–7
Winner	5.	15 March 2010	Bath, Great Britain	Hard	Lenka Juríková	6–2, 7–6(8–6)
Winner	6.	9 August 2010	Koksijde, Belgium	Clay	Kiki Bertens	6–4, 6–4
Runner-up	3.	5 September 2011	Alphen aan den Rijn, Netherlands	Clay	Stephanie Vogt	2–6, 4–6
Runner-up	4.	20 February 2012	Tallinn, Estonia	Hard (i)	Anett Kontaveit	5–7, 4–6
Runner-up	5.	12 March 2012	Bath, Great Britain	Hard	Tereza Smitková	6–4, 2-6, 1-6
Runner-up	6.	27 May 2013	Grado, Italy	Clay	Yvonne Meusburger	2–6, 7–6(7–2), 3–6
Runner-up	7.	7 July 2013	Toruń, Poland	Clay	Paula Kania	4–6, 4–6
Runner-up	8.	21 July 2013	Olomouc, Czech Republic	Clay	Polona Hercog	0–6, 3–6
Runner-up	9.	10 August 2013	Izmir, Turkey	Hard	Ana Vrljić	1–6, 3–6
Winner	7.	25 May 2015	Grado, Italy	Clay	Kristina Schmiedlova	6–3, 6–0
Runner-up	10.	28 August 2016	Bagnatica, Italy	Clay	Martina Trevisan	1–6, 7–5, 5–7
Winner	8.	22 January 2017	Orlando, United States	Clay	Sofia Kenin	6–7(4–7), 6–2, 6–4

Doubles (17–16)

Outcome	No.	Date	Tournament	Surface	Partner	Opponents	Score
Winner	1.	6 May 2008	Michalovce, Slovakia	Clay	Lenka Juríková	Romana Tabak Nikola Vajdová	6–1, 6–1
Winner	2.	30 September 2008	Les Franqueses del Vallès, Spain	Hard	Aleksandra Josifoska	Bojana Borovnica Cristina Sánchez-Quintanar	6–3, 2–6, [10–3]
Runner-up	1.	19 November 2008	Opole, Poland	Carpet	Arantxa Rus	Karolina Kosińska Aleksandra Rosolska	6–2, 6–7(6–8), [7–10]
Winner	3.	17 March 2010	Bath, Great Britain	Hard	Malou Ejdesgaard	Jade Curtis Anna Fitzpatrick	6–3, 6–2
Runner-up	2.	29 June 2010	Toruń, Poland	Clay	Barbara Sobaszkiewicz	Teodora Mirčić Marija Mirkovic	6–4, 2–6, [5–10]
Runner-up	3.	7 September 2010	Katowice, Poland	Clay	Barbara Sobaszkiewicz	Olga Brózda Natalia Kołat	3–6, 3–6
Runner-up	4.	8 November 2010	Minsk, Belarus	Hard	Paula Kania	Elena Bovina Ekaterina Bychkova	4–6, 0–6
Runner-up	5.	21 March 2011	Bath, Great Britain	Hard	Marta Domachowska	Tímea Babos Anne Kremer	6–7(5–7), 2–6
Runner-up	6.	11 April 2011	Casablanca, Morocco	Clay	Magda Linette	Sandra Klemenschits Kristina Mladenovic	3–6, 6–3, [8–10]
Winner	4.	13 June 2011	Padova, Italy	Clay	Kristina Mladenovic	Irina Buryachok Réka-Luca Jani	6–4, 6–3
Runner-up	7.	22 August 2011	Prague-Neride, Czech Republic	Clay	Jana Čepelová	Iveta Gerlová Lucie Kriegsmannová	7–6(10–8), 1–6, [8–10]
Runner-up	8.	5 September 2011	Alphen aan den Rijn, Netherlands	Clay	Barbara Sobaszkiewicz	Diana Enache Daniëlle Harmsen	2–6, 7–6(7–4), [9–11]
Winner	5.	10 October 2011	Sant Cugat, Spain	Clay	Jana Čepelová	Leticia Costas-Moreira Inés Ferrer Suárez	6–3, 2–6, [10–6]
Runner-up	9.	12 March 2012	Bath, Great Britain	Hard	Lenka Jurikova	Samantha Murray Emily Webley-Smith	6–4, 4–6, 5-10
Winner	6.	14 May 2012	Caserta, Italy	Clay	Romana Tabak	Viktorija Golubic Aleksandra Krunić	6–2, 6–4
Winner	7.	25 June 2012	Ystad, Sweden	Clay	Magda Linette	Oksana Kalashnikova Lenka Wienerová	6–3, 6–3
Runner-up	10.	2 July 2012	Toruń, Poland	Clay	Barbara Sobaszkiewicz	Kateřina Kramperová Martina Kubicikova	6–1, 3–6, [4–10]
Winner	8.	10 September 2012	Sofia, Bulgaria	Clay	Barbara Sobaszkiewicz	Marina Melnikova Raluca Olaru	7–5, 6–1
Winner	9.	17 September 2012	Dobrich, Bulgaria	Clay	Barbara Sobaszkiewicz	Lisa Sabino Anne Schäfer	6–2, 7–5
Winner	10.	15 October 2012	Seville, Spain	Clay	Paula Kania	Aleksandrina Naydenova Teliana Pereira	5–7, 6–4, [10–6]
Winner	11.	5 November 2012	Equeurdreville, France	Hard	Magda Linette	Amra Sadiković Ana Vrljić	6–4, 7–6(7–4)
Winner	12.	17 December 2012	Ankara, Turkey	Hard	Magda Linette	Irina Buryachok Valeria Solovieva	6–2, 6–2
Winner	13.	22 April 2013	Tunis, Tunisia	Clay	Aleksandra Krunić	Réka-Luca Jani Eugeniya Pashkova	6–2, 3–6, [10–7]
Runner-up	11.	24 June 2013	Zlín, Czech Republic	Clay	Paula Kania	Martina Borecká Tereza Smitková	1–6, 7–5, [8–10]
Winner	14.	5 August 2013	Izmir, Turkey	Hard	Aleksandra Krunić	Kristi Boxx Abigail Guthrie	6–2, 6–2
Runner-up	12.	26 October 2014	Poitiers, France	Hard (i)	Maryna Zanevska	Andrea Hlaváčková Lucie Hradecká	1–6, 5–7
Runner-up	13.	29 May 2015	Grado, Italy	Clay	Sharon Fichman	Viktorija Golubic Beatriz Haddad Maia	3–6, 2–6
Winner	15.	19 February 2016	Perth, Australia	Hard	Tammi Patterson	Han Na-lae Jang Su-jeong	4–6, 6–2, [10–3]
Winner	16.	12 June 2016	Padua, Italy	Clay	Alice Matteucci	Cristina Dinu Lina Gjorcheska	2–6, 7–6, [10–8]
Winner	17.	25 June 2016	Rome, Italy	Clay	Claudia Giovine	Andrea Gámiz Réka Luca Jani	6–3, 3–6, [10–7]
Runner-up	14.	15 January 2017	Daytona Beach United States	Clay	Paula Kania	Robin Anderson Anhelina Kalinina	4–6, 1–6
Runner-up	15.	22 January 2017	Orlando United States	Clay	Paula Kania	Sophie Chang Madeleine Kobelt	3–6, 6–3, [6–10]
Runner–up	16.	25 June 2017	Warsaw, Poland	Clay	Katarzyna Kawa	Priscilla Hon Vera Lapko	6–7(3–7), 4–6

Singles

Doubles