

Introduction
Ysaline Bonaventure (born 29 August 1994) is a Belgian professional tennis player.
Bonaventure has won two WTA Tour doubles titles and 7 singles and 9 doubles titles on the ITF tour during her career. On 28 September 2015, she reached her best singles ranking of world number 146. On 1 February 2016, she peaked at world number 57 in the doubles rankings.
Bonaventure is coached by former WTA Tour player Noëlle van Lottum and works with her in the Netherlands.
Playing for Belgium at the Fed Cup, Bonaventure has a win–loss record of 1–3 according to her profile on the tournament website. Bonaventure was selected for the Belgian Fed Cup team for the first time in 2012. She played a doubles match alongside Alison Van Uytvanck in the World Group Play-offs. The team lost 2–6, 4–6 against Rika Fujiwara and Kimiko Date-Krumm of Japan.
She won several ITF titles in her career according to her profile on the WTA Tour website.
She lost in the first round of qualifying at the 2015 Australian Open and at the 2015 French Open. At Wimbledon 2015, she also lost in the first round of qualifying, eventually beaten in 3 sets by Michelle Larcher De Brito. She reached the third round of qualifying in the last Grand Slam tournament of 2015.
WTA career finals
Doubles: 2 (2 titles)
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| Outcome | No. | Date | Championship | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|
| Winner | 1. | 21 February 2015 | Rio Open, Rio de Janeiro, Brazil | Clay | 3–0, ret. | ||
| Winner | 2. | 12 April 2015 | Katowice Open, Katowice, Poland | Hard (i) | 7–5, 4–6, [10–6] |
ITF finals (17–11)
Singles (7–8)
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| Outcome | No. | Date | Tournament | Surface | Opponent | Score |
|---|---|---|---|---|---|---|
| Runner–up | 1. | 12 March 2012 | Amiens, France | Clay | 3–6, 6–0, 3–6 | |
| Runner–up | 2. | 26 March 2012 | Le Havre, France | Clay | 7–5, 5–7, 0–6 | |
| Winner | 1. | 11 June 2012 | Meppel, Netherlands | Clay | 6–2, 6–4 | |
| Runner–up | 3. | 16 July 2012 | Knokke, Belgium | Clay | 1–6, 6–7(4) | |
| Winner | 2. | 24 July 2012 | Maaseik, Belgium | Clay | 6–2, 6–1 | |
| Runner–up | 4. | 25 February 2013 | Bron, France | Hard | 2–6, 1–6 | |
| Winner | 3. | 6 May 2013 | Båstad, Sweden | Clay | 6–1 6–2 | |
| Winner | 4. | 10 June 2013 | Amstelveen, Netherlands | Clay | 6–4 6–2 | |
| Runner–up | 5. | 2 September 2013 | Berlin, Germany | Clay | 3–6, 5–7 | |
| Runner–up | 6. | 26 January 2014 | Andrézieux-Bouthéon, France | Hard (i) | 1–6, 1–6 | |
| Winner | 5. | 23 June 2014 | Kristinehamn, Sweden | Clay | 6–3, 6–3 | |
| Runner–up | 7. | 17 August 2014 | Westende, Belgium | Hard | 2–6 0–6 | |
| Runner–up | 8. | 13 October 2014 | Florence, United States | Hard | 2–6, 1–6 | |
| Winner | 6. | 26 September 2015 | Monterrey, Mexico | Hard | 6–1, 6–2 | |
| Winner | 7. | 21 February 2016 | Altenkirchen, Germany | Carpet (i) | 6–3, 6–3 |
Doubles (10–3)
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| Outcome | No. | Date | Tournament | Surface | Partner | Opponents | Score |
|---|---|---|---|---|---|---|---|
| Winner | 1. | 11 June 2012 | Meppel, Netherlands | Clay | 6–1, 4–6, [10–7] | ||
| Winner | 2. | 26 June 2012 | Breda, Netherlands | Clay | 6–4, 7–6(5) | ||
| Runner–up | 1. | 6 May 2013 | Båstad, Sweden | Clay | 1–6, 4–6 | ||
| Winner | 3. | 2 September 2013 | Berlin, Germany | Clay | 6–4 3–6 10–5 | ||
| Runner-up | 2. | 13 June 2014 | Essen, Germany | Clay | 2–6, 2–6 | ||
| Runner-up | 3. | 23 June 2014 | Kristinehamn, Sweden | Clay | Walkover | ||
| Winner | 4. | 9 August 2014 | Koksijde, Belgium | Clay | 6–4, 6–4 | ||
| Winner | 5. | 16 August 2014 | Westende, Belgium | Hard | 6–2, 6–2 | ||
| Winner | 6. | 20 October 2014 | Saguenay, Canada | Hard (i) | 6–4, 6–4 | ||
| Winner | 7. | 8 March 2015 | Curitiba, Brazil | Clay | 4–6, 6–3, [10–5] | ||
| Winner | 8. | 26 September 2015 | Monterrey, Mexico | Hard | 6–4, 3–6, [11–9] | ||
| Winner | 9. | 3 October 2015 | Ciudad Victoria, Mexico | Hard | 6–4, 4–6, [10–6] | ||
| Winner | 10. | 21 February 2016 | Altenkirchen, Germany | Carpet (i) | 6–1, 6–4 |