# Nastja Kolar

Nastja Kolar (born 15 July 1994) is a Slovenian former professional tennis player. In her junior career, her highest ranking was fourth. Her highest WTA rankings were 178 in singles and 140 in doubles.
In 2023, Kolar was provisionally suspended from tennis competitions by the International Tennis Integrity Agency (ITIA) on corruption charges, and then later that year she was banned for life from professional tennis and fined $175,000 after the ITIA found her guilty of 25 match fixing offenses.

## Tennis career

In July 2009 Kolar played in her first WTA Tour tournament, the Slovenia Open in Portorož, where she lost to Roberta Vinci in the first round. In 2010, she won a $10k tournament in Croatia, her first title on the ITF Women's Circuit. In May 2011, Kolar won her second title at a $25k event in Maribor, Slovenia. In July, she qualified for the Gastein Ladies where she won her first WTA Tour-level match when she defeated Alla Kudryavtseva in straight sets to advance to the second round. Kolar won her biggest title in 2014, winning the doubles title at the $50k 2014 Ankara Cup with Ekaterine Gorgodze.

## ITF Circuit finals

* Legend
* $75,000 tournaments
* $50,000 tournaments
* $25,000 tournaments
* $10/15,000 tournaments

### Singles: 23 (10 titles, 13 runner-ups)

| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Win | 1–0 | Aug 2010 | ITF Čakovec, Croatia | 10,000 | Clay | Paola Cigui | 7–5, 6–4 |
| Win | 2–0 | Jun 2011 | Maribor Open, Slovenia | 25,000 | Clay | Maša Zec Peškirič | 7–5, 6–4 |
| Loss | 2–1 | Aug 2013 | ITF Pörtschach, Austria | 10,000 | Clay | Gioia Barbieri | 2–6, 3–6 |
| Loss | 2–2 | Sep 2013 | Save Cup Mestre, Italy | 50,000 | Clay | Claire Feuerstein | 1–6, 6–7 $^{(2)}$ |
| Loss | 2–3 | Nov 2013 | Soho Square Tournament, Egypt | 75,000 | Clay | Victoria Kan | 4–6, 4–6 |
| Win | 3–3 | Jan 2014 | ITF Kaarst, Germany | 10,000 | Carpet (i) | Natela Dzalamidze | 4–6, 6–1, 6–4 |
| Win | 4–3 | Jun 2014 | ITF Ystad, Sweden | 25,000 | Clay | Sandra Zaniewska | 6–4, 6–4 |
| Loss | 4–4 | Jun 2015 | ITF Lenzerheide, Switzerland | 25,000 | Clay | Tereza Martincová | 3–6, 4–6 |
| Loss | 4–5 | Jun 2016 | ITF Antalya, Turkey | 10,000 | Hard | Zuzana Zlochová | 6–3, 2–6, 0–3 ret. |
| Loss | 4–6 | Apr 2017 | ITF Heraklion, Greece | 15,000 | Clay | Nina Alibalić | 1–6, 3–6 |
| Loss | 4–7 | Sep 2017 | ITF Prague, Czech Republic | 15,000 | Clay | Miriam Kolodziejová | 2–6, 7–5, 4–6 |
| Loss | 4–8 | Oct 2017 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Tereza Mihalíková | 2–6, 4–6 |
| Loss | 4–9 | Dec 2017 | ITF Cairo, Egypt | 15,000 | Clay | Sandra Samir | 4–6, 1–6 |
| Win | 5–9 | Feb 2018 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Bunyawi Thamchaiwat | 6–2, 6–4 |
| Win | 6–9 | Mar 2018 | ITF Manama, Bahrain | 15,000 | Hard | Tereza Mihalíková | 6–4, 6–2 |
| Win | 7–9 | Apr 2018 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Angelina Gabueva | 2–6, 6–4, 6–0 |
| Win | 8–9 | Oct 2018 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Anastasia Sukhotina | 6–1, 6–1 |
| Loss | 8–10 | Apr 2019 | ITF Cairo, Egypt | 15,000 | Clay | Despina Papamichail | 3–6, 6–4, 4–6 |
| Loss | 8–11 | Sep 2019 | ITF Cairo, Egypt | 15,000 | Clay | Sandra Samir | 3–6, 4–6 |
| Win | 9–11 | Sep 2019 | ITF Cairo, Egypt | 15,000 | Clay | Sandra Samir | 6–3, 5–7, 7–6$^{(4)}$ |
| Loss | 9–12 | Oct 2019 | Lagos Open, Nigeria | 25,000 | Hard | Riya Bhatia | 5–7, 6–1, 3–6 |
| Loss | 9–13 | Sep 2021 | ITF Sozopol, Bulgaria | 15,000 | Hard | Chiara Catini | 6–4, 6–7$^{(5)}$, 3–6 |
| Win | 10–13 | Oct 2021 | ITF Sozopol, Bulgaria | 15,000 | Hard | Martha Matoula | 7–5, 3–6, 6–1 |

### Doubles: 31 (16 titles, 15 runner-ups)

| Result | W–L | Date | Tournament | Tier | Surface | Partner | Opponents | Score |
| Win | 1–0 | Aug 2009 | ITF Velenje, Slovenia | 10,000 | Clay | Polona Rebersak | Camelia Hristea Diana Marcu | 6–3, 6–2 |
| Win | 2–0 | Aug 2010 | ITF Čakovec, Croatia | 10,000 | Clay | Polona Rebersak | Katarína Baranová Simonka Parajová | 6–0, 6–1 |
| Loss | 2–1 | Aug 2013 | ITF Innsbruck, Austria | 10,000 | Clay | Polona Rebersak | Lucy Brown Hilda Melander | 6–3, 3–6, [7–10] |
| Win | 3–1 | Aug 2013 | ITF Pörtschach, Austria | 10,000 | Clay | Polona Rebersak | Gioia Barbieri Giulia Sussarello | 6–0, 2–6, [10–4] |
| Win | 4–1 | Jan 2014 | ITF Kaarst, Germany | 10,000 | Carpet (i) | Olga Ianchuk | Vivian Heisen Linda Prenkovic | 7–5, 6–3 |
| Win | 5–1 | Jun 2014 | ITF Ystad, Sweden | 25,000 | Clay | Yvonne Neuwirth | Anna Danilina Xenia Knoll | 7–6$^{(3)}$, 3–6, [10–6] |
| Win | 6–1 | Sept 2014 | ITF Monterrey, Mexico | 25,000 | Hard | Chantal Škamlová | Florencia Molinero Sofia Shapatava | 6–3, 2–6, [10–5] |
| Loss | 6–2 | Nov 2014 | ITF Sharm El Sheikh, Egypt | 25,000 | Hard | Olga Ianchuk | Antonia Lottner Laura Siegemund | 1–6, 1–6 |
| Loss | 6–3 | Dec 2014 | ITF Antalya, Turkey | 10,000 | Hard | Ekaterine Gorgodze | Sofia Kvatsabaia Chantal Škamlová | w/o |
| Win | 7–3 | Dec 2014 | Ankara Cup, Turkey | 50,000 | Hard | Ekaterine Gorgodze | Oleksandra Korashvili Elitsa Kostova | 6–4, 7–6$^{(5)}$ |
| Win | 8–3 | Apr 2015 | ITF Santa Margherita die Pula, Italy | 25,000 | Clay | Despina Papamichail | Diana Buzean Alice Matteucci | 6–1, 1–6, [10–8] |
| Win | 9–3 | May 2015 | ITF Maribor, Slovenia | 25,000 | Clay | Ekaterine Gorgodze | Petra Krejsová Kateřina Vaňková | 6–2, 6–4 |
| Los | 9–4 | Dec 2015 | ITF Antalya, Turkey | 10,000 | Hard | Karin Kennel | Aminat Kushkhova Julia Stamatova | 5–7, 1–6 |
| Win | 10–4 | Jan 2016 | ITF Antalya, Turkey | 10,000 | Clay | Jasmina Tinjić | Julia Grabher Anna Slováková | 7–6$^{(5)}$, 3–6, [10–6] |
| Win | 11–4 | Mar 2016 | ITF Sharm El Sheikh, Egypt | 10,000 | Hard | Mariam Bolkvadze | Oleksandra Korashvili Margarita Lazareva | 7–6$^{(0)}$, 7–5 |
| Loss | 11–5 | May 2016 | ITF Antalya, Turkey | 10,000 | Hard | Francesca Stephenson | Kyra Shroff Dhruthi Tatachar Venugopal | 3–6, 7–5, [1–10] |
| Loss | 11–6 | May 2016 | ITF Antalya, Turkey | 10,000 | Hard | Francesca Stephenson | Lou Brouleau Emma Léné | 5–7, 3–6 |
| Loss | 11–7 | 11 June 2016 | ITF Antalya, Turkey | 10,000 | Hard | Francesca Stephenson | Masa Jovanovic Phillis Vanenburg | w/o |
| Win | 12–7 | June 2016 | Maribor Open, Slovenia | 10,000 | Clay | Francesca Stephenson | Polona Reberšak Gabriela Talabă | 5–7, 6–0, [10–3] |
| Loss | 12–8 | July 2016 | ITF Bad Waltersdorf, Austria | 10,000 | Clay | Francesca Stephenson | Nina Potočnik Polona Reberšak | 3–6, 4–6 |
| Loss | 12–9 | Feb 2017 | ITF Antalya, Turkey | 15,000 | Clay | Karin Kennel | Başak Eraydın Valentyna Ivakhnenko | 6–7$^{(6)}$, 2–6 |
| Win | 13–9 | Apr 2017 | ITF Heraklion, Greece | 15,000 | Clay | Jasmina Tinjić | Tamara Čurović Camila Giangreco Campiz | 6–1, 6–1 |
| Loss | 13–10 | Oct 2017 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Barbara Bonić | Nina Kruijer Suzan Lamens | 6–3, 5–7, [8–10] |
| Loss | 13–11 | Oct 2017 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Caroline Ilowska | Emilie Francati Kanika Vaidya | 6–3, 5–7, [7–10] |
| Loss | 13–12 | Oct 2017 | ITF Sharm El Sheikh, Egypt | 15,000 | Hard | Elena-Teodora Cadar | Ola Abou Zekry Linnéa Malmqvist | 7–5, 3–6, [3–10] |
| Win | 14–12 | Nov 2017 | ITF Cairo, Egypt | 15,000 | Clay | Rio Kitagawa | Annick Melgers Arina Vasilescu | 6–2, 4–6, [10–4] |
| Win | 15–12 | Dec 2017 | ITF Cairo, Egypt | 15,000 | Clay | Rio Kitagawa | Melanie Klaffner Jelena Stojanovic | 1–6, 6–4, [10–2] |
| Loss | 15–13 | April 2019 | ITF Óbidos, Portugal | 25,000 | Carpet | Mariam Bolkvadze | Sofia Shapatava Emily Webley-Smith | 1–6, 6–2, [9–11] |
| Loss | 15–14 | Dec 2019 | ITF Cairo, Egypt | 15,000 | Clay | Anna Makhorkina | Maria Marfutina Oana Georgeta Simion | 6–3, 0–6, [2–10] |
| Loss | 15–15 | Oct 2021 | ITF Sozopol, Bulgaria | 15,000 | Hard | Ani Vangelova | Oana Gavrilă Emily Seibold | 0–6, 2–6 |
| Win | 16–15 | Sep 2022 | ITF Brașov, Romania | 15,000 | Clay | Bojana Marinković | Ilinca Amariei Ioana Gașpar | 6–4, 6–4 |