Career
Teichmann along with İpek Soylu is the current holder of United States Open girls" doubles title after defeating Vera Lapko and Tereza Mihalíková 5–7, 6–2, in the final. Singles (1–1) Doubles (3–1) Girls" Doubles matches Mixed Doubles.
Teichmann along with İpek Soylu is the current holder of United States Open girls" doubles title after defeating Vera Lapko and Tereza Mihalíková 5–7, 6–2, in the final. Singles (1–1) Doubles (3–1) Girls" Doubles matches Mixed Doubles.
Teichmann has won one singles and three doubles titles on the International Tennis Federation tour during her career. Teichmann has a career high Women's Tennis Association singles ranking of 415 achieved on 21 September 2015 and a career high Women's Tennis Association 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 January Zieliński defeated Ye Qiuyu of China and Jumpei Yamasaki of Japan 4–6, 6–3, in the final.