| WTA Strasbourg | 09/22 08:00 | 26 | [54] Jil Teichmann v Anastasia Pavlyuchenkova [38] | 7-6,7-5 | |
| WTA Strasbourg | 09/20 10:00 | 25 | [27] Amanda Anisimova v Jil Teichmann [54] | 2-6,3-6 | |
| WTA Rome | 09/14 14:05 | 24 | [65] Anna Blinkova v Jil Teichmann [54] | 6-3,6-3 | |
| US Open Women | 09/01 23:00 | 23 | [52] Jil Teichmann v Aliona Bolsova [103] | 6-7,2-6 | |
| WTA New York | 08/24 19:05 | 25 | [20] Anett Kontaveit v Jil Teichmann [54] | 6-3,6-4 | |
| WTA New York | 08/23 20:55 | 24 | [53] Danielle Collins v Jil Teichmann [54] | 3-6,3-6 | |
| WTA New York | 08/21 15:00 | 19 | [54] Jil Teichmann v Shelby Rogers [95] | 6-3,6-4 | |
| WTA New York | 08/20 19:40 | 44 | [54] Jil Teichmann v Aliona Bolsova [103] | 6-2,6-2 | |
| WTA Lexington | 08/16 15:00 | 29 | [63] Jil Teichmann v Jennifer Brady [49] | 3-6,4-6 | |
| WTA Lexington | 08/15 15:00 | 28 | [116] Shelby Rogers v Jil Teichmann [63] | 3-6,2-6 | |
| WTA Lexington | 08/14 15:00 | 27 | [302] Catherine Bellis v Jil Teichmann [63] | 2-6,4-6 | |
| WTA Lexington | 08/13 15:00 | 26 | [63] Jil Teichmann v Yulia Putintseva [33] | 6-2,6-2 | |
| WTA Lexington | 08/11 16:25 | 25 | [114] Anna Kalinskaya v Jil Teichmann [63] | 2-6,5-7 | |
| Swiss Pro Cup Women | 07/25 13:30 | - | [8] Belinda Bencic v Jil Teichmann [63] | 4-1,4-1 | |
| WTA Lyon | 03/06 11:00 | 26 | Oceane Dodin v Jil Teichmann | Walkover | |
| WTA Lyon | 03/03 11:40 | 25 | Clara Burel v Jil Teichmann | 4-6,3-6 | |
| WTA Doha | 02/23 18:40 | 24 | [42] Jelena Ostapenko v Jil Teichmann [68] | 7-5,2-6,7-5 | |
| WTA Doha | 02/22 11:45 | 46 | [68] Jil Teichmann v Jana Cepelova [163] | 7-5,6-2 | |
| WTA Doha | 02/21 14:50 | 45 | [68] Jil Teichmann v Margarita Gasparyan [109] | 6-3,6-4 | |
| WTA Dubai | 02/15 10:25 | 44 | [153] Tereza Martincova v Jil Teichmann [68] | 7-5,6-4 | |
| 2020 Fed Cup | 02/08 13:40 | - | [68] Jil Teichmann v Gabriela Dabrowski [448] | 6-3,6-4 | |
| 2020 Fed Cup | 02/07 13:00 | - | [68] Jil Teichmann v Leylah Annie Fernandez [185] | 7-6,6-4 | |
| Australian Open Women | 01/20 00:00 | 23 | [28] Ekaterina Alexandrova v Jil Teichmann [68] | 6-4,4-6,6-2 | |
| WTA Hobart | 01/13 01:35 | 25 | [67] Jil Teichmann v Heather Watson [101] | 6-1,4-6,4-6 | |
| WTA Auckland | 01/09 03:50 | 26 | [68] Jil Teichmann v Julia Goerges [41] | 3-6,2-6 | |
| WTA Auckland | 01/06 04:00 | 25 | Jil Teichmann v Valentina Ivanov | 6-4,6-3 | |
| WTA Limoges | 12/20 13:00 | 27 | [67] Aliaksandra Sasnovich v Jil Teichmann [73] | 6-3,7-5 | |
| WTA Limoges | 12/19 18:00 | 26 | [73] Jil Teichmann v Jennifer Brady [55] | 7-5,7-6 | |
| WTA Limoges | 12/16 11:35 | 25 | [73] Jil Teichmann v Tamara Korpatsch [110] | 7-6,6-3 | |
| WTA Luxembourg | 10/14 13:50 | 25 | Jil Teichmann v Margarita Gasparyan | 6-2,6-7,3-6 |
Wikipedia - Jil Teichmann
Jil Belén Teichmann (born 15 July 1997) is a Swiss professional tennis player. She has been ranked by the Women's Tennis Association (WTA) as high as world No. 21 in singles and No. 73 in doubles. She has won two titles in singles and two in doubles on the WTA Tour, along with one WTA 125 doubles title. In addition, she won six singles titles and five doubles titles on the ITF Circuit.
A former junior world No. 3, Teichmann won a Grand Slam title in the girls' doubles event at the 2014 US Open. That year, she also won a gold medal for Switzerland in mixed doubles at the Summer Youth Olympics in Nanjing.
Her breakthrough as a senior player came in May 2019 when she won her first WTA Tour title in Prague. In July of that year, she won another WTA tournament title after making her first top-10 win over Kiki Bertens. She continued progressing, in March 2021 reaching the semifinals of the WTA 1000 Dubai Championships. With these performances she entered the top 50. Later that year, she reached the final of the Cincinnati Open, a WTA 1000 event, defeating Naomi Osaka, Belinda Bencic, and Karolína Plíšková, before falling to world No. 1, Ashleigh Barty.