Piter at the2025 Transylvania Open | |
| Country (sports) | |
|---|---|
| Residence | Ceradz Kościelny, Poland |
| Born | (1991-02-16)16 February 1991 (age 34) Poznań, Poland |
| Height | 1.73 m (5 ft 8 in) |
| Turned pro | 2006 |
| Plays | Right-handed (two-handed backhand) |
| Coach | Jakub Piter |
| Prize money | US$ 1,058,699 |
| Singles | |
| Career record | 409–321 |
| Career titles | 0 WTA, 8 ITF |
| Highest ranking | No. 95 (12 May 2014) |
| Grand Slam singles results | |
| Australian Open | 1R (2014) |
| French Open | 1R (2014) |
| Wimbledon | 1R (2014) |
| US Open | 1R (2014) |
| Doubles | |
| Career record | 397–278 |
| Career titles | 5 |
| Highest ranking | No. 49 (9 June 2025) |
| Current ranking | No. 53 (27 October 2025) |
| Grand Slam doubles results | |
| Australian Open | 2R (2014) |
| French Open | 2R (2014,2023) |
| Wimbledon | 1R (2014,2022,2023,2024,2025) |
| US Open | 2R (2014) |
| Team competitions | |
| Fed Cup | 7–6 |
| Last updated on: 27 October 2025. | |
Katarzyna Piter (Polish pronunciation:[kataˈʐɨnaˈpitɛr]; born 16 February 1991) is a Polish professionaltennis player who specializes in doubles.
On 12 May 2014, she reached her career-high ranking of No. 95 in singles and on 9 June 2025, she achieved her best doubles ranking of No. 49. Piter has won five doubles titles on theWTA Tour and oneWTA 125 doubles title, as well as eight singles and 26 doubles titles on theITF Women's Circuit.

In July 2013, at thePalermo Ladies Open, Piter won her first title on theWTA Tour. She and partnerKristina Mladenovic upsetKarolína andKristýna Plíšková in the final, in a super-tiebreak.[citation needed]
Partnered withFanny Stollár, she also won the doubles title at the2023 Budapest Grand Prix, defeatingJessie Aney andAnna Sisková inna champions tiebreak in the final.[1] The pair defended their title inBudapest the following year, beatingAnna Danilina andIrina Khromacheva in the final which again went to a deciding champions tiebreak.[2] Piter and Stollár were runners-up in the doubles at the2024 Guangzhou Open, losing to top seedsKateřina Siniaková andZhang Shuai in the final.[3] They also lost in the final at the2024 Jiangxi Open, this time toGuo Hanyu andMoyuka Uchijima.[4]
Teaming withMayar Sherif, she won the2025 Mérida Open, defeating Anna Danilina and Irina Khromacheva in the final.[5] Piter combined withJanice Tjen to claim the2025 Guangzhou Open, overcomingEudice Chong andLiang En-shuo in the final which went to a deciding champions tiebreak.[6]
Piter played 2009 forPoland in theEurope/Africa Zone I of theFed Cup and helped them qualify for the World Group II Play-offs againstJapan. In the round-robin stage, she lost her match againstMonica Niculescu ofRomania, won againstJohanna Larsson ofSweden, beatDijana Stojić ofBosnia and Herzegovina and paired up withKlaudia Jans to beat the Bosnian pairing. In the first play-off againstGreat Britain, she lost the first singles match toElena Baltacha, 4–6, 1–6. Poland, however, won that tie.[7]
| W | F | SF | QF | #R | RR | Q# | P# | DNQ | A | Z# | PO | G | S | B | NMS | NTI | P | NH |
Only main-draw results inWTA Tour,Grand Slam tournaments,Billie Jean King Cup,United Cup,Hopman Cup andOlympic Games are included in win–loss records.
| Tournament | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | ... | 2021 | W–L | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | |||||||||||||||||||
| Australian Open | A | A | A | A | A | A | A | 1R | Q3 | A | A | A | A | 0–1 | |||||
| French Open | A | A | A | A | A | A | A | 1R | A | A | A | A | A | 0–1 | |||||
| Wimbledon | A | A | A | A | A | A | A | 1R | A | A | A | A | A | 0–1 | |||||
| US Open | A | A | A | A | A | A | Q2 | 1R | Q2 | A | Q1 | A | A | 0–1 | |||||
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–4 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–4 | |||||
| National representation | |||||||||||||||||||
| Billie Jean King Cup[a] | A | A | PO2 | A | A | A | PO2 | WG2 | A | A | Z1 | A | A[b] | 4–5 | |||||
| WTA 1000 | |||||||||||||||||||
| Indian Wells Open | A | A | A | A | A | A | A | Q1 | A | A | A | A | A | 0–0 | |||||
| Miami Open | A | A | A | A | A | A | A | 1R | A | A | A | A | A | 0–1 | |||||
| Madrid Open | A | A | A | A | A | A | A | Q2 | A | A | A | A | A | 0–0 | |||||
| Italian Open | A | A | A | A | A | A | A | Q1 | A | A | A | A | A | 0–0 | |||||
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | |||||
| Career statistics | |||||||||||||||||||
| Tournaments | 1 | 0 | 1 | 1 | 0 | 0 | 2 | 12 | 0 | 1 | 0 | 1 | 1 | Career total: 20 | |||||
| Overall win–loss | 0–1 | 0–0 | 2–3 | 1–1 | 0–0 | 0–0 | 3–2 | 4–14 | 0–0 | 0–1 | 2–1 | 0–1 | 0–1 | 12–25 | |||||
| Year-end ranking[c] | 675 | 466 | 330 | 242 | 324 | 376 | 122 | 162 | 218 | 239 | 345 | 297 | 493 | ||||||
Current through the2023 Budapest Grand Prix.
| Tournament | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | SR | W–L | Win% |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Grand Slam tournaments | ||||||||||||||||||||
| Australian Open | A | A | A | A | A | 2R | 1R | A | A | A | A | A | A | 1R | A | 1R | 1R | 0 / 5 | 1–5 | 17% |
| French Open | A | A | A | A | A | 2R | A | A | A | A | A | A | A | 1R | 2R | 1R | 1R | 0 / 5 | 2–5 | 29% |
| Wimbledon | A | A | A | A | A | 1R | A | A | A | A | A | NH | A | 1R | 1R | 1R | 1R | 0 / 5 | 0–5 | 0% |
| US Open | A | A | A | A | A | 2R | A | A | A | A | A | A | A | 1R | 1R | 1R | 1R | 0 / 5 | 1–5 | 17% |
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 3–4 | 0–1 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–4 | 1–3 | 0–4 | 0–4 | 0 / 20 | 4–20 | 17% |
| WTA 1000 | ||||||||||||||||||||
| Madrid Open | A | A | A | A | A | A | A | A | A | A | A | A | 1R | 1R | A | 0 / 2 | 0–2 | 0% | ||
| Italian Open | A | A | A | A | A | 1R | A | A | A | A | A | A | A | A | A | 0 / 1 | 0–1 | 0% | ||
| Win–loss | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–0 | 0–1 | 0–1 | 0–0 | 0 / 3 | 0–3 | 0% | ||
| Career statistics | ||||||||||||||||||||
| Tournaments | 0 | 0 | 3 | 0 | 10 | 18 | 6 | 6 | 2 | 2 | 1 | 0 | 17 | 15 | 5 | Career total: 85 | ||||
| Titles | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | Career total: 2 | ||||
| Finals | 0 | 0 | 1 | 0 | 1 | 1 | 0 | 1 | 0 | 0 | 0 | 0 | 2 | 1 | 2 | Career total: 9 | ||||
| Overall win–loss | 1–0 | 0–0 | 4–3 | 0–0 | 13–9 | 12–18 | 5–6 | 6–6 | 4–3 | 1–2 | 0–1 | 0–0 | 11–17 | 8–15 | 8–4 | 2 / 85 | 73–84 | 46% | ||
| Year-end ranking[d] | 322 | 385 | 129 | 183 | 81 | 78 | 146 | 116 | 247 | 213 | 248 | 134 | 93 | 114 | 67 | |||||
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Jun 2011 | Danish Open, Denmark | International[e] | Hard | 3–6, 3–6 | ||
| Win | 1–1 | Jul 2013 | Palermo Ladies Open, Italy | International | Clay | 6–1, 5–7, [10–8] | ||
| Loss | 1–2 | Apr 2014 | Marrakesh Grand Prix, Morocco | International | Clay | 6–4, 2–6, [9–11] | ||
| Loss | 1–3 | Jul 2016 | Bucharest Open, Romania | International | Clay | 3–6, 6–7(5–7) | ||
| Loss | 1–4 | Jul 2021 | Poland Open, Poland | WTA 250 | Clay | 3–6, 2–6 | ||
| Loss | 1–5 | Aug 2021 | Cluj-Napoca Open, Romania | WTA 250 | Clay | 3–6, 4–6 | ||
| Loss | 1–6 | Jul 2022 | Budapest Grand Prix, Hungary | WTA 250 | Clay | 6–1, 4–6, [6–10] | ||
| Loss | 1–7 | Apr 2023 | Copa Colsanitas, Colombia | WTA 250 | Clay | 1–6, 6–3, [6–10] | ||
| Win | 2–7 | Jul 2023 | Budapest Grand Prix, Hungary | WTA 250 | Clay | 6–2, 4–6, [10–4] | ||
| Loss | 2–8 | Jul 2023 | Poland Open, Poland | WTA 250 | Hard | 4–6, 4–6 | ||
| Win | 3–8 | Jul 2024 | Budapest Grand Prix, Hungary (2) | WTA 250 | Clay | 6–3, 3–6, [10–3] | ||
| Loss | 3–9 | Oct 2024 | Guangzhou Open, China | WTA 250 | Hard | 4–6, 1–6 | ||
| Loss | 3–10 | Oct 2024 | Jiangxi Open, China | WTA 250 | Hard | 6–7(5–7), 5–7 | ||
| Win | 4–10 | Mar 2025 | Mérida Open, Mexico | WTA 500 | Hard | 7–6(7–2), 7–5 | ||
| Win | 5–10 | Oct 2025 | Guangzhou Open, China | WTA 250 | Hard | 3–6, 6–3, [10–5] |
| Result | W–L | Date | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | Sep 2021 | Karlsruhe Open, Germany | Clay | 3–6, 6–2, [7–10] | ||
| Loss | 0–2 | Apr 2023 | San Luis Open, Mexico | Clay | 6–7(5–7), 4–6 | ||
| Loss | 0–3 | Jun 2023 | Veneto Open, Italy | Grass | 3–6, 6–3, [6–10] | ||
| Loss | 0–4 | Mar 2024 | San Luis Open, Mexico | Clay | w/o | ||
| Loss | 0–5 | May 2024 | Catalonia Open, Spain | Clay | 5–7, 2–6 | ||
| Win | 1–5 | Jun 2024 | Internacional de Valencia, Spain | Clay | 6–1, 4–6, [10–8] | ||
| Win | 2–5 | Sep 2024 | Guadalajara Open, Mexico | Hard | 6–4, 7–5 |
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
|---|---|---|---|---|---|---|---|
| Loss | 0–1 | May 2007 | ITF Michalovce, Slovakia | 10,000 | Clay | 6–2, 3–6, 4–6 | |
| Win | 1–1 | Aug 2007 | ITF Bielefeld, Germany | 10,000 | Clay | 3–6, 6–3, 6–4 | |
| Win | 2–1 | Mar 2008 | ITF Ain Sukhna, Egypt | 10,000 | Clay | 7–6(9–7), 6–4 | |
| Win | 3–1 | Mar 2008 | ITF Cairo, Egypt | 10,000 | Clay | 6–1, 6–3 | |
| Win | 4–1 | Nov 2008 | ITF Jersey, United Kingdom | 10,000 | Hard (i) | 6–2, 6–2 | |
| Loss | 4–2 | Jul 2009 | ITF Brussels, Belgium | 10,000 | Clay | 6–0, 5–7, 5–7 | |
| Win | 5–2 | Mar 2010 | GB Pro-Series Bath, UK | 10,000 | Hard (i) | 6–2, 7–6(8–6) | |
| Win | 6–2 | Aug 2010 | ITF Koksijde, Belgium | 25,000 | Clay | 6–4, 6–4 | |
| Loss | 6–3 | Sep 2011 | ITF Alphen aan den Rijn, Netherlands | 25,000 | Clay | 2–6, 4–6 | |
| Loss | 6–4 | Feb 2012 | ITF Tallinn, Estonia | 10,000 | Hard (i) | 5–7, 4–6 | |
| Loss | 6–5 | Mar 2012 | GB Pro-Series Bath, UK | 10,000 | Hard (i) | 6–4, 2–6, 1–6 | |
| Loss | 6–6 | Jun 2013 | Grado Tennis Cup, Italy | 25,000 | Clay | 2–6, 7–6(7–2), 3–6 | |
| Loss | 6–7 | Jul 2013 | Bella Cup Toruñ, Poland | 25,000 | Clay | 4–6, 4–6 | |
| Loss | 6–8 | Jul 2013 | ITS Cup Olomouc, Czech Republic | 100,000 | Clay | 0–6, 3–6 | |
| Loss | 6–9 | Aug 2013 | ITF Izmir, Turkey | 25,000 | Hard | 1–6, 3–6 | |
| Win | 7–9 | May 2015 | Grado Tennis Cup, Italy | 25,000 | Clay | 6–3, 6–0 | |
| Loss | 7–10 | Aug 2016 | ITF Bagnatica, Italy | 25,000 | Clay | 1–6, 7–5, 5–7 | |
| Win | 8–10 | Jan 2017 | ITF Orlando, United States | 25,000 | Clay | 6–7(4–7), 6–2, 6–4 | |
| Loss | 8–11 | Nov 2017 | ITF Zawada, Poland | 25,000 | Carpet (i) | 2–6, 6–4, 4–6 | |
| Loss | 8–12 | Jul 2018 | ITF Horb, Germany | 25,000 | Clay | 6–4, 3–6, 6–7(4–7) |
|
|
| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|---|
| Win | 1–0 | May 2008 | ITF Michalovce, Slovakia | 10,000 | Clay | 6–1, 6–1 | ||
| Win | 2–0 | Oct 2008 | ITF Les Franqueses del Vallès, Spain | 10,000 | Hard | 6–3, 2–6, [10–3] | ||
| Loss | 2–1 | Nov 2008 | ITF Opole, Poland | 25,000 | Carpet (i) | 6–2, 6–7(6), [7–10] | ||
| Win | 3–1 | Mar 2010 | GB Pro-Series Bath, United Kingdom | 10,000 | Hard (i) | 6–3, 6–2 | ||
| Loss | 3–2 | Jul 2010 | Bella Cup Toruñ, Poland | 25,000 | Clay | 6–4, 2–6, [5–10] | ||
| Loss | 3–3 | Sep 2010 | ITF Katowice, Poland | 25,000 | Clay | 3–6, 3–6 | ||
| Loss | 3–4 | Nov 2010 | ITF Minsk, Belarus | 25,000 | Hard (i) | 4–6, 0–6 | ||
| Loss | 3–5 | Mar 2011 | GB Pro-Series Bath, United Kingdom | 25,000 | Hard (i) | 6–7(5), 2–6 | ||
| Loss | 3–6 | Apr 2011 | ITF Casablanca, Morocco | 25,000 | Clay | 3–6, 6–3, [8–10] | ||
| Win | 4–6 | Jun 2011 | ITF Padova, Italy | 25,000 | Clay | 6–4, 6–3 | ||
| Loss | 4–7 | Aug 2011 | ITF Prague-Neride, Czech Republic | 25,000 | Clay | 7–6(8), 1–6, [8–10] | ||
| Loss | 4–8 | Sep 2011 | ITF Alphen aan den Rijn, Netherlands | 25,000 | Clay | 2–6, 7–6(4), [9–11] | ||
| Win | 5–8 | Oct 2011 | ITF Sant Cugat, Spain | 25,000 | Clay | 6–3, 2–6, [10–6] | ||
| Loss | 5–9 | Mar 2012 | GB Pro-Series Bath, United Kingdom | 10,000 | Hard (i) | 6–4, 4–6, [5–10] | ||
| Win | 6–9 | May 2012 | ITF Caserta, Italy | 25,000 | Clay | 6–2, 6–4 | ||
| Win | 7–9 | Jun 2012 | ITF Ystad, Sweden | 25,000 | Clay | 6–3, 6–3 | ||
| Loss | 7–10 | Jul 2012 | Bella Cup Toruñ, Poland | 25,000 | Clay | 6–1, 3–6, [4–10] | ||
| Win | 8–10 | Sep 2012 | ITF Sofia, Bulgaria | 25,000 | Clay | 7–5, 6–1 | ||
| Win | 9–10 | Sep 2012 | ITF Dobrich, Bulgaria | 25,000 | Clay | 6–2, 7–5 | ||
| Win | 10–10 | Oct 2012 | ITF Seville, Spain | 25,000 | Clay | 5–7, 6–4, [10–6] | ||
| Win | 11–10 | Nov 2012 | ITF Équeurdreville, France | 25,000 | Hard (i) | 6–4, 7–6(4) | ||
| Win | 12–10 | Dec 2012 | Ankara Cup, Turkey | 50,000 | Hard (i) | 6–2, 6–2 | ||
| Win | 13–10 | Apr 2013 | Nana Trophy Tunis, Tunisia | 25,000 | Clay | 6–2, 3–6, [10–7] | ||
| Loss | 13–11 | Jun 2013 | ITF Zlín, Czech Republic | 25,000 | Clay | 1–6, 7–5, [8–10] | ||
| Win | 14–11 | Aug 2013 | ITF Izmir, Turkey | 25,000 | Hard | 6–2, 6–2 | ||
| Loss | 14–12 | Oct 2014 | Internationaux de Poitiers, France | 100,000 | Hard (i) | 1–6, 5–7 | ||
| Loss | 14–13 | May 2015 | Grado Tennis Cup, Italy | 25,000 | Clay | 3–6, 2–6 | ||
| Win | 15–13 | Feb 2016 | ITF Perth, Australia | 25,000 | Hard | 4–6, 6–2, [10–3] | ||
| Win | 16–13 | Jun 2016 | ITF Padua, Italy | 25,000 | Clay | 2–6, 7–6(1), [10–8] | ||
| Win | 17–13 | Jun 2016 | ITF Rome, Italy | 25,000 | Clay | 6–3, 3–6, [10–7] | ||
| Loss | 17–14 | Jan 2017 | ITF Daytona Beach, United States | 25,000 | Clay | 4–6, 1–6 | ||
| Loss | 17–15 | Jan 2017 | ITF Orlando, United States | 25,000 | Clay | 3–6, 6–3, [6–10] | ||
| Loss | 17–16 | Jun 2017 | ITF Warsaw, Poland | 25,000 | Clay | 6–7(3), 4–6 | ||
| Loss | 17–17 | Feb 2018 | GB Pro-Series Glasgow, United Kingdom | 25,000 | Hard (i) | 5–7, 4–6 | ||
| Win | 18–17 | Feb 2018 | AK Ladies Open, Germany | 25,000 | Carpet (i) | w/o | ||
| Win | 19–17 | Sep 2018 | ITF Óbidos, Portugal | 25,000 | Carpet | 6–3, 6–2 | ||
| Win | 20–17 | Oct 2018 | ITF Cherbourg-en-Cotentin, France | 25,000 | Hard (i) | 6–2, 6–1 | ||
| Loss | 20–18 | Nov 2018 | ITF Pétange, Luxembourg | 25,000 | Hard (i) | 6–2, 2–6, [8–10] | ||
| Loss | 20–19 | Feb 2019 | AK Ladies Open, Germany | 25,000 | Carpet (i) | 7–5, 3–6, [10–12] | ||
| Win | 21–19 | Apr 2019 | ITF Jackson, United States | 25,000 | Clay | 7–5, 6–1 | ||
| Win | 22–19 | Jul 2019 | ITF Bytom, Poland | 25,000 | Clay | 6–4, 6–0 | ||
| Loss | 22–20 | Sep 2019 | ITF Prague, Czech Republic | 25,000 | Clay | 2–6, 7–5, [8–10] | ||
| Loss | 22–21 | Oct 2019 | ITF İstanbul, Turkey | 25,000 | Hard (i) | 2–6, 6–2, [6–10] | ||
| Loss | 22–22 | Nov 2019 | ITF Pétange, Luxemburg | 25,000 | Hard (i) | 6–7(11), 6–1, [9–11] | ||
| Win | 23–22 | Feb 2020 | Cairo Open, Egypt | 100,000 | Hard | 6–4, 6–2 | ||
| Win | 24–22 | Sep 2020 | Open de Saint-Malo, France | 60,000 | Clay | 6–2, 6–4 | ||
| Loss | 24–23 | Sep 2020 | Open de Cagnes-sur-Mer, France | 80,000 | Clay | 5–7, 2–6 | ||
| Loss | 24–24 | Nov 2020 | Tyler Pro Challenge, United States | 80,000 | Hard | 3–6, 7–5, [9–11] | ||
| Win | 25–24 | Apr 2022 | Oeiras Ladies Open, Portugal | 80,000 | Clay | 6–1, 6–1 | ||
| Win | 26–24 | Aug 2024 | ITF Maspalomas, Spain | W100 | Clay | 6–4, 6–2 |
| Result | W–L | Opponent | Rank | Event | Surface | Round | Score | Rank | H2H |
|---|---|---|---|---|---|---|---|---|---|
| 2007 | |||||||||
| Loss | 0–1 | No. 9 | Warsaw Open, Poland | Clay | 1R | 3–6, 5–7 | n/a | ||
| 2014 | |||||||||
| Loss | 0–2 | No. 9 | French Open, France | Clay | 1R | 3–6, 1–6 | No. 95 | ||