Jil Teichmann

Jil Belen Teichmann (born 15 July 1997 in Barcelona) is a Spanish-born Swiss tennis player.
Teichmann has won one singles and three doubles titles on the ITF tour during her career. Teichmann has a career high WTA singles ranking of 415 achieved on 21 September 2015 and a career high WTA doubles ranking of 363 achieved on 09 November 2015.
At the 2014 Summer Youth Olympics in Nanjing, Xu won the gold medal in Mixed Doubles, partnering Jan Zieliński defeated Ye Qiuyu of China and Jumpei Yamasaki of Japan 4–6, 6–3, [10–5] in the final.
Teichmann along with İpek Soylu is the current holder of US Open girls' doubles title after defeating Vera Lapko and Tereza Mihalíková 5–7, 6–2, [10–7] in the final.

Singles (4–1)

Outcome	No.	Date	Tournament	Surface	Opponent	Score
Runner-up	1.	26 October 2014	Sharm el-Sheikh, Egypt	Hard	Polina Leykina	2–6, 0–6
Winner	1.	30 August 2015	Braunschweig, Germany	Clay	Ekaterina Alexandrova	6–3, 6–3
Winner	2.	19 June 2016	Montpellier, France	Clay	Montserrat Gonzalez	6–2, 7–6 (8–6)
Winner	3.	25 June 2016	Périgueux, France	Clay	Olga Sáez Larra	6–3, 6–3
Winner	4.	6 November 2016	Hammamet, Tunisia	Clay	Diana Enache	6–4, 6–4

Doubles (5–5)

Outcome	No.	Date	Tournament	Surface	Partner	Opponents	Score
Winner	1.	31 August 2013	Caslano, Switzerland	Clay	Chiara Grimm	Sara Ottomano Barbora Štefková	6–4, 4–6, [10–4]
Winner	2.	26 April 2014	Chiasso, Switzerland	Clay	Chiara Grimm	Alice Matteucci Camilla Rosatello	7–5, 6–3
Winner	3.	23 August 2015	Leipzig, Germany	Clay	Priscilla Hon	Pia Konig Conny Perrin	6–1, 6–4
Runner-up	1.	22 January 2016	Guarujá, Brazil	Hard	Laura Pigossi	Paula Cristina Gonçalves Beatriz Haddad Maia	7–6(7–3), 5–7, [7–10]
Runner-up	2.	17 June 2016	Montpellier, France	Clay	Lourdes Dominguez Lino	Prarthana Thombare Eva Wacanno	5–7, 6–2, [9–11]
Runner-up	3.	2 September 2016	Barcelona, Spain	Clay	Alice Matteucci	Andrea Gamiz Georgina Garcia-Perez	2–6, 5–7
Winner	4.	7 October 2016	Pula, Italy	Clay	Tamara Zidanšek	Claudia Giovine Camilla Rosatello	6–2, 6–4
Runner-up	4.	16 October 2016	Sharm el-Sheikh, Egypt	Hard	Guadalupe Perez Rojas	Mariam Bolkvadze Alona Fomina	2–6, 3–6
Runner-up	5.	23 October 2016	Sharm el-Sheikh, Egypt	Hard	Guadalupe Perez Rojas	Irina Maria Bara Alona Fomina	2–6, 1–6
Winner	5.	5 November 2016	Hammamet, Tunisia	Clay	Guadalupe Perez Rojas	Tamara Čurović Barbara Kötelesová	6–1, 4–6, [11–9]

Girls' Doubles

Outcome	Year	Championship	Surface	Partner	Opponents	Score
Winner	2014	US Open	Hard	İpek Soylu	Vera Lapko Tereza Mihalíková	5–7, 6–2, [10–7]

Mixed Doubles

Outcome	Year	Championship	Surface	Partner	Opponents	Score
Gold	2014	Nanjing Youth Olympics	Hard	Jan Zieliński	Ye Qiuyu Jumpei Yamasaki	4–6, 6–3, [10–5]