| WTA Praha | 05/01 09:00 | 25 | [66] Mona Barthel v Antonia Lottner [158] | 0-6,5-7 | |
| WTA Istanbul | 04/23 16:00 | 25 | [65] Mona Barthel v Christina McHale [88] | 6-7,6-4,3-6 | |
| WTA Lugano | 04/14 08:30 | 27 | [68] Mona Barthel v Elise Mertens [20] | 4-6,7-5,6-7 | |
| WTA Lugano | 04/13 12:00 | 26 | [68] Mona Barthel v Donna Vekic [55] | 6-3,4-6,6-4 | |
| WTA Lugano | 04/11 11:20 | 25 | [29] Svetlana Kuznetsova v Mona Barthel [68] | 6-4,3-6,4-6 | |
| WTA Miami | 03/20 22:20 | 23 | [65] Mona Barthel v Timea Babos [47] | 6-7,3-6 | |
| WTA Indian Wells | 03/10 19:00 | 24 | Mona Barthel v Elina Svitolina | 4-6,3-6 | |
| WTA Indian Wells | 03/08 20:40 | 23 | Veronica Cepede Royg v Mona Barthel | 2-6,1-6 | |
| WTA Budapest | 02/24 16:05 | 28 | Dominika Cibulkova v Mona Barthel | 6-3,6-2 | |
| WTA Budapest | 02/23 14:05 | 27 | Mona Barthel v Ysaline Bonaventure | 6-3,6-4 | |
| WTA Budapest | 02/22 16:00 | 26 | Timea Babos v Mona Barthel | 4-6,6-4,3-6 | |
| WTA Budapest | 02/19 14:25 | 25 | Mona Barthel v Kateryna Kozlova | 7-6,5-7,6-0 | |
| WTA Doha | 02/12 17:35 | 24 | Mona Barthel v Agnieszka Radwanska | 6-3,3-6,5-7 | |
| WTA St. Petersburg | 01/29 10:00 | 25 | Mona Barthel v Alize Cornet | 3-6,5-7 | |
| Australian Open - Kvinner | 01/17 07:10 | 24 | Mona Barthel v Anett Kontaveit | 3-6,6-4,3-6 | |
| Australian Open - Kvinner | 01/15 00:00 | 23 | Monica Niculescu v Mona Barthel | 4-6,5-7 | |
| WTA Hobart | 01/07 04:10 | 25 | Varvara Lepchenko v Mona Barthel | 6-0,7-6 | |
| WTA Auckland | 01/01 22:00 | 25 | Varvara Lepchenko v Mona Barthel | 6-2,6-2 | |
| WTA Beijing | 09/30 08:20 | 24 | [49] Mona Barthel v Sorana Cirstea [46] | 6-7,1-6 | |
| WTA Wuhan | 09/24 07:55 | 24 | [70] Monica Puig v Mona Barthel [51] | 6-0,6-7,6-4 | |
| WTA Guangzhou | 09/20 07:35 | 26 | [65] Aleksandra Krunic v Mona Barthel [51] | 6-4,6-0 | |
| WTA Guangzhou | 09/18 05:30 | 25 | [53] Mona Barthel v Jing-Jing Lu [210] | 6-0,4-6,6-3 | |
| US Open - Kvinner | 08/28 21:30 | 23 | [51] Mona Barthel v Ekaterina Makarova [40] | 2-6,1-6 | |
| WTA New Haven Qual | 08/18 19:00 | 44 | [53] Mona Barthel v Pauline Parmentier [98] | 2-6,3-6 | |
| WTA Cincinnati Qual | 08/12 15:55 | 44 | [49] Mona Barthel v Zarina Diyas [108] | 5-7,2-6 | |
| WTA Toronto Qual | 08/05 18:55 | 44 | [50] Mona Barthel v Mariana Duque Marino [115] | 6-1,4-6,4-6 | |
| WTA Båstad | 07/27 14:05 | 26 | [127] Kateryna Kozlova v Mona Barthel [49] | 6-3,6-3 | |
| WTA Båstad | 07/25 15:30 | 25 | [49] Mona Barthel v Johanna Larsson [51] | 6-7,7-5,7-6 | |
| WTA Gstaad | 07/17 08:30 | 25 | [94] Maria Sakkari v Mona Barthel [50] | 4-6,6-3,6-3 | |
| Wimbledon - Kvinner | 07/04 10:30 | 23 | [48] Mona Barthel v Coco Vandeweghe [25] | 5-7,2-6 |
Wikipedia - Mona Barthel
Mona Barthel (born 11 July 1990) is a German tennis player.
Barthel has won four singles and three doubles titles on the WTA Tour, one doubles title on the WTA Challenger Tour as well as five singles titles and one doubles title on the ITF Circuit in her career. On 18 March 2013, she reached her best singles ranking of world No. 23. On 14 September 2015, she peaked at No. 63 in the doubles rankings.