Elitsa Kostova
Elitsa Kostova is a professional Bulgarian tennis player. On 12 September 2016, she reached her highest WTA singles ranking of world No. 130 whilst her best doubles ranking is No. 154, achieved on 26 October 2015. Her win-loss record for Bulgaria Fed Cup team is 16–18.
Career
At a $25k tournament in Wellington, New Zealand, held in November 2010, Kostova, ranked 254 in the world, achieved her greatest victory in her career. She defeated world No. 42 Jarmila Groth in the semifinals in two sets. In the final, she lost to world No. 241 Erika Sema in three sets. Kostova won her first match in a WTA main draw by beating Alizé Lim at the 2014 Bucharest Open, after coming through the qualifying competition. At the 2015 Rio Open, she reached her first WTA semifinal in doubles along with Hsu Chieh-yu and they lost to defending champions Irina-Camelia Begu and María Irigoyen in straight sets.In July 2016 came her biggest win so far, winning the final Europe Tennis Center Ladies Open in Budapest against fellow Bulgarian Fed Cup teammate Viktoriya Tomova.
Grand Slam performance timeline
Singles
ITF Circuit finals
Singles: 25 (6 titles, 19 runner–ups)
| Result | W–L | Date | Tournament | Tier | Surface | Opponent | Score |
| Loss | 0–1 | Apr 2008 | ITF Antalya, Turkey | 10,000 | Clay |  Michelle Gerards | 2–6, 6–2, 6–7 |
| Win | 1–1 | Jun 2008 | ITF Alcobaça, Portugal | 10,000 | Hard |  Amanda Carreras | 3–6, 6–2, 6–2 |
| Loss | 1–2 | Dec 2008 | ITF Vinaròs, Spain | 10,000 | Clay |  Conny Perrin | 4–6, 2–6 |
| Win | 2–2 | Nov 2009 | ITF Le Havre, France | 10,000 | Clay |  Sina Haas | 6–0, 6–4 |
| Loss | 2–3 | Feb 2010 | ITF Albufeira, Portugal | 10,000 | Hard |  Evelyn Mayr | 4–6, 4–6 |
| Loss | 2–4 | Jul 2010 | ITF Mont-de-Marsan, France | 25,000 | Clay |  Petra Cetkovská | 2–6, 2–6 |
| Loss | 2–5 | Jul 2010 | ITF Les Contamines, France | 25,000 | Hard | Andrea Hlaváčková | 5–7, 6–0, 4–6 |
| Loss | 2–6 | Nov 2010 | ITF Wellington, New Zealand | 25,000 | Hard |  Erika Sema | 2–6, 6–3, 4–6 |
| Loss | 2–7 | Dec 2010 | Bendigo International, Australia | 25,000 | Hard |  Tímea Babos | 6–3, 3–6, 5–7 |
| Loss | 2–8 | Feb 2011 | ITF Vale do Lobo, Portugal | 10,000 | Hard |  Alison van Uytvanck | 4–6, 6–4, 2–6 |
| Loss | 2–9 | Jul 2011 | Open Diputación Ciudad de Pozoblanco, Spain | 50,000 | Hard |  Eleni Daniilidou | 3–6, 2–6 |
| Loss | 2–10 | Aug 2011 | Empire Slovak Open, Slovakia | 50,000 | Clay |  Yvonne Meusburger | 6–0, 2–6, 0–6 |
| Loss | 2–11 | Aug 2011 | ITF Koksijde, Belgium | 25,000 | Clay | Kiki Bertens | 2–6, 1–6 |
| Win | 3–11 | Oct 2011 | ITF Dobrich, Bulgaria | 25,000 | Clay |  Elena Bogdan | 7–6, 6–2 |
| Loss | 3–12 | Nov 2011 | ITF Benicarló, Spain | 25,000 | Clay |  Garbiñe Muguruza | 6–7, 7–6, 3–6 |
| Loss | 3–13 | Apr 2013 | ITF Dijon, France | 15,000 | Hard | Kristina Barrois | 3–6, 5–7 |
| Loss | 3–14 | Nov 2013 | John Newcombe Women's Pro Challenge, United States | 50,000 | Hard |  Anna Tatishvili | 4–6, 4–6 |
| Win | 4–14 | Jun 2014 | Montpellier Open, France | 25,000 | Clay |  Sofiya Kovalets | 7–5, 6–1 |
| Loss | 4–15 | Nov 2014 | ITF Sharm El Sheikh, Egypt | 25,000 | Hard |  Margarita Gasparyan | 3–6, 0–6 |
| Loss | 4–16 | Feb 2015 | Open Andrézieux-Bouthéon 42, France | 25,000 | Hard | Margarita Gasparyan | 4–6, 4–6 |
| Win | 5–16 | Jul 2016 | Hungarian Ladies Open, Hungary | 100,000 | Clay |  Viktoriya Tomova | 6–0, 7–6 |
| Loss | 5–17 | Sep 2017 | Henderson Open, United States | 60,000 | Hard | Sesil Karatantcheva | 4–6, 6–4, 5–7 |
| Loss | 5–18 | Mar 2018 | ITF Pula, Italy | 25,000 | Clay |  Başak Eraydın | 4–6, 1–6 |
| Win | 6–18 | Jun 2019 | ITF Santa Margarida de Montbui, Spain | 25,000 | Hard |  Arina Rodionova | 7–5, 6–3 |
| Loss | 6–19 | Jun 2019 | ITF Přerov, Czech Republic | 25,000 | Clay | Anhelina Kalinina | 1–6, 6–4, 1–6 |
Doubles 20 (6 titles, 14 runner–ups)
Fed Cup
Elitsa Kostova debuted for the Bulgaria Fed Cup team in 2008. Since then, she has a 10–12 singles and a 6–6 doubles record.Singles (8–9)
Doubles (4–5)
- RR = Round Robin
- RPO = Relegation Play-off