| WTA Dubai | 03/09 15:00 | 25 | [10] Petra Kvitova v Jil Teichmann [54] | Retired | |
| WTA Dubai | 03/08 14:05 | 24 | [128] Katarina Zavatska v Jil Teichmann [54] | 1-6,2-6 | |
| WTA Dubai | 03/08 08:00 | 24 | Paula Badosa v Jil Teichmann | Cancelled | |
| WTA Adelaide | 02/26 04:30 | 28 | [18] Iga Swiatek v Jil Teichmann [61] | 6-3,6-2 | |
| WTA Adelaide | 02/25 00:30 | 27 | [56] Anastasija Sevastova v Jil Teichmann [61] | 4-6,7-6,5-7 | |
| WTA Adelaide | 02/24 02:25 | 26 | [61] Jil Teichmann v Qiang Wang [35] | 3-6,6-3,6-3 | |
| WTA Adelaide | 02/23 00:30 | 25 | [61] Jil Teichmann v Kristina Mladenovic [51] | 6-2,7-6 | |
| WTA Melbourne | 02/17 03:00 | 27 | [58] Jil Teichmann v Marie Bouzkova [50] | 3-6,6-4,2-6 | |
| WTA Melbourne | 02/16 00:00 | 26 | [58] Jil Teichmann v Patricia Maria Tig [56] | Retired | |
| WTA Melbourne | 02/15 02:30 | 25 | [146] Monica Niculescu v Jil Teichmann [58] | 2-6,2-6 | |
| WTA Melbourne | 02/15 02:30 | 25 | Shuai Zhang v Jil Teichmann | Cancelled | |
| WTA Melbourne | 02/14 07:10 | 24 | [138] Mihaela Buzarnescu v Jil Teichmann [58] | 7-6,3-6,3-6 | |
| Australian Open - Kvinner | 02/09 03:00 | 23 | [48] Cori Gauff v Jil Teichmann [58] | 6-3,6-2 | |
| WTA Gippsland Trophy | 02/01 02:45 | 24 | [48] Cori Gauff v Jil Teichmann [57] | 6-3,6-7,7-6 | |
| WTA Linz | 11/11 11:00 | 25 | [115] Oceane Dodin v Jil Teichmann [57] | 1-6,6-4,6-2 | |
| WTA Ostrava | 10/18 10:25 | 168 | [58] Jil Teichmann v Barbora Krejcikova [85] | 3-6,2-6 | |
| WTA Ostrava | 10/17 12:10 | 45 | [58] Jil Teichmann v Anna-Lena Friedsam [107] | 7-5,6-3 | |
| French Open - Kvinner | 09/27 14:20 | 23 | [73] Irina-Camelia Begu v Jil Teichmann [53] | 6-4,4-6,6-3 | |
| WTA Strasbourg | 09/24 11:15 | 27 | [54] Jil Teichmann v Elina Svitolina [5] | 4-6,3-6 | |
| 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 Roma | 09/14 14:05 | 24 | [65] Anna Blinkova v Jil Teichmann [54] | 6-3,6-3 | |
| US Open - Kvinner | 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 |
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 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.