# Sandra Zaniewska

Sandra Zaniewska (born 3 January 1992) is a Polish tennis coach and former professional player.
In her career, she won ten singles tournaments as well as a further seven in doubles on the ITF Circuit, and was the runner-up of the 2009 Australian Open in girls' doubles, with partner Aleksandra Krunić.
Zaniewska, who competed on the pro tour until June 2017, began coaching Ukrainian professional tennis player Marta Kostyuk in July 2023. She previously coached Alizé Cornet and Petra Martić.

## Personal life

Sandra Zaniewska was born to Maciej Zaniewski and Teresa Zaniewska on 3 January 1992 in Katowice. She has one brother, Bartek. Sandra began playing tennis at age ten.

## ITF finals
### Singles: 20 (10–10)

* Legend
* $25,000 tournaments
* $15,000 tournaments
* $10,000 tournaments
* Finals by surface
* Hard (2–2)
* Clay (8–8)
| Result | No. | Date | Tournament | Surface | Opponent | Score |
| Loss | 1. | 19 July 2009 | ITF Izmir, Turkey | Clay | Pemra Özgen | 0–6, 4–6 |
| Win | 1. | 9 August 2009 | ITF Iława, Poland | Clay | Zuzana Zlochová | 6–4, 6–4 |
| Loss | 2. | 2 May 2010 | ITF Antalya, Turkey | Clay | Ons Jabeur | 1–2 ret. |
| Win | 2. | 20 June 2010 | ITF Cologne, Germany | Clay | Julia Babilon | 6–4, 6–4 |
| Win | 3. | 19 June 2011 | ITF Cologne, Germany | Clay | Lena-Marie Hofmann | 6–4, 6–2 |
| Loss | 3. | 18 September 2011 | ITF Cairns, Australia | Hard | Casey Dellacqua | 4–6, 6–7$^{(3)}$ |
| Loss | 4. | 4 March 2012 | ITF Wellington, New Zealand | Hard | Duan Yingying | 1–6, 4–6 |
| Win | 4. | 25 March 2012 | ITF Ipswich, Australia | Clay | Ashleigh Barty | 7–6$^{(5)}$, 6–1 |
| Win | 5. | 1 April 2012 | ITF Bundaberg, Australia | Clay | Shuko Aoyama | 6–3, 6–2 |
| Win | 6. | 28 April 2012 | Nana Trophy, Tunisia | Clay | Ons Jabeur | 6–4, 4–6, 6–2 |
| Loss | 5. | 24 May 2013 | ITF Casablanca, Morocco | Clay | Laura Pous Tió | 3–6, 0–6 |
| Win | 7. | 3 November 2013 | ITF Sharm El Sheikh, Egypt | Hard | Valeria Prosperi | 6–4, 6–1 |
| Win | 8. | 6 April 2014 | ITF Sharm El Sheikh, Egypt | Hard | Elena-Teodora Cadar | 6–2, 6–1 |
| Loss | 6. | 21 June 2014 | ITF Ystad, Sweden | Clay | Nastja Kolar | 4–6, 4–6 |
| Loss | 7. | 29 March 2015 | ITF Mornington, Australia | Clay | Priscilla Hon | 7–5, 3–6, 6–7$^{(4)}$ |
| Loss | 8. | 28 June 2015 | ITF Breda, Netherlands | Clay | Jesika Malečková | 3–6, 7–5, 5–7 |
| Win | 9. | 24 April 2016 | ITF Hammamet, Tunisia | Clay | Angelica Moratelli | 7–6$^{(4)}$, 6–2 |
| Win | 10. | 1 May 2016 | ITF Hammamet, Tunisia | Clay | Inès Ibbou | 6–1, 6–4 |
| Loss | 9. | 30 July 2016 | ITF Maaseik, Belgium | Clay | Déborah Kerfs | 2–6, 5–7 |
| Loss | 10. | 12 March 2017 | ITF Hammamet, Tunisia | Clay | Camilla Scala | 6–1, 3–6, 3–6 |

### Doubles: 22 (7–15)

* Legend
* $100,000 tournaments
* $50,000 tournaments
* $25,000 tournaments
* $15,000 tournaments
* $10,000 tournaments
* Finals by surface
* Hard (3–6)
* Clay (4–9)
| Result | No. | Date | Tournament | Surface | Partner | Opponents | Score |
| Loss | 1. | 9 November 2008 | ITF Krakow, Poland | Hard (i) | Olga Brózda | Angelique Kerber Urszula Radwańska | 3–6, 2–6 |
| Loss | 2. | 15 March 2009 | ITF Giza, Egypt | Clay | Bibiane Schoofs | Galina Fokina Alyona Sotnikova | 4–6, 6–3, [8–10] |
| Loss | 3. | 18 July 2009 | ITF Izmir, Turkey | Clay | Zuzana Linhová | Sofia Kvatsabaia Avgusta Tsybysheva | 0–6, 6–3, [5–10] |
| Win | 1. | 2 May 2010 | ITF Antalya, Turkey | Clay | Pemra Özgen | Indire Akiki Martina Kubičíková | 6–1, 6–2 |
| Loss | 4. | 16 October 2010 | ITF Mount Gambier, Australia | Hard | Daniella Dominikovic | Alison Bai Ana-Clara Duarte | w/o |
| Loss | 5. | 12 February 2011 | ITF Rancho Mirage, United States | Hard | Nadejda Guskova | Karolína Plíšková Kristýna Plíšková | 7–6$^{(6)}$, 1–6, [5–10] |
| Win | 2. | 19 March 2011 | ITF Antalya, Turkey | Clay | Pemra Özgen | Réka Luca Jani Martina Kubičíková | 2–6, 7–5, [10–7] |
| Loss | 6. | 9 April 2011 | ITF Bundaberg, Australia | Clay | Daniella Dominikovic | Casey Dellacqua Olivia Rogowska | 5–7, 4–6 |
| Loss | 7. | 9 October 2011 | ITF Esperance, Australıa | Hard | Monique Adamczak | Casey Dellacqua Olivia Rogowska] | 3–6, 2–6 |
| Win | 3. | 24 March 2012 | ITF Ipswich, Australia | Clay | Monique Adamczak | Shuko Aoyama Junri Namigata | 7–5, 6–4 |
| Win | 4. | 20 October 2012 | Open de Limoges, France | Hard (i) | Magda Linette | Irena Pavlovic Stefanie Vögele | 6–1, 5–7, [10–5] |
| Loss | 8. | 24 May 2013 | ITF Casablanca, Morocco | Clay | Elitsa Kostova | Justine Ozga Anna Zaja | 4–6, 2–6 |
| Loss | 9. | 30 June 2013 | ITF Stuttgart, Germany | Clay | Stephanie Vogt | Kristina Barrois Laura Siegemund | 6–7$^{(1)}$, 4–6 |
| Win | 5. | 26 October 2013 | ITF Sharm El Sheikh, Egypt | Hard | Elise Mertens | Valeriya Strakhova Karina Venditti | 6–4, 6–7$^{(5)}$, [12–10] |
| Loss | 10. | 28 June 2014 | ITF Kristinehamn, Sweden | Clay | Ysaline Bonaventure | Kateryna Bondarenko Cornelia Lister | w/o |
| Win | 6. | 13 September 2014 | Batumi Ladies Open, Georgia | Hard | An-Sophie Mestach | Aleksandrina Naydenova Valeriya Strakhova | 6–1, 6–1 |
| Loss | 11. | 3 April 2015 | ITF Melbourne, Australia | Clay | Agata Barańska | Priscilla Hon Tammi Patterson | 6–2, 4–6, [10–12] |
| Win | 7. | 20 June 2015 | ITF Alkmaar, Netherlands | Clay | Sally Peers | Anna Klasen Charlotte Klasen | 6–3, 6–4 |
| Loss | 12. | 29 January 2016 | ITF Bertioga, Brazil | Hard | Katarzyna Kawa | Cristina Dinu Indy de Vroome | 3–6, 3–6 |
| Loss | 13. | 14 October 2016 | ITF Cairns, Australia | Hard | Katarzyna Kawa | Alison Bai Lizette Cabrera | 5–7, 7–5, [10–12] |
| Loss | 14. | 4 March 2017 | ITF Hammamet, Tunisia | Clay | Dominique Karregat | Natasha Piludu Gaia Sanesi | 3–6, 2–6 |
| Loss | 15. | 8 April 2017 | ITF Pula, Italy | Clay | Bibiane Schoofs | Alice Matteucci Camilla Rosatello | 1–6, 3–6 |

## Junior Grand Slam finals
### Girls' doubles

| Outcome | Year | Tournament | Surface | Partner | Opponents | Score |
| Runner-up | 2009 | Australian Open | Hard | Aleksandra Krunić | Christina McHale Ajla Tomljanović | 1–6, 6–2, [4–10] |