| ITF W60 Amstelveen | 07/06 13:20 | 25 | [137] Xiyu Wang v Simona Waltert [243] | 6-2,6-1 | |
| Wimbledon Women | 06/24 11:45 | 15 | [114] Oceane Dodin v Simona Waltert [240] | 7-5,7-6 | |
| Wimbledon Women | 06/23 10:00 | 14 | [199] Elena Gabriela Ruse v Simona Waltert [240] | 2-6,2-6 | |
| ITF W60 Stare Splavy | 06/16 13:20 | 25 | [237] Simona Waltert v Reka-Luca Jani [185] | 4-6,6-2,4-6 | |
| WTA Strasbourg | 05/23 08:00 | 19 | [114] Oceane Dodin v Simona Waltert [239] | 6-4,7-5 | |
| WTA Strasbourg | 05/22 09:40 | 14 | [291] Paula Ormaechea v Simona Waltert [239] | 3-6,3-6 | |
| ITF W25 Platja D’Aro | 05/18 13:55 | 25 | [271] Irene Burillo Escorihuela v Simona Waltert [239] | 4-6,7-5,7-5 | |
| ITF W60 La Bisbal | 05/13 09:55 | 26 | [125] Greet Minnen v Simona Waltert [244] | 6-3,4-6,6-4 | |
| ITF W60 La Bisbal | 05/11 10:30 | 25 | [244] Simona Waltert v Mona Barthel [175] | 7-5,7-6 | |
| ITF W60 La Bisbal | 05/10 10:10 | 54 | [244] Simona Waltert v Melanie Stokke [488] | 6-3,6-4 | |
| ITF W60 La Bisbal | 05/09 12:05 | 54 | Simona Waltert v Angelina Gabueva | 6-0,6-0 | |
| ITF W25 Oeiras | 04/24 14:05 | 27 | [259] Simona Waltert v Anhelina Kalinina [164] | 2-6,2-6 | |
| ITF W25 Oeiras | 04/23 11:35 | 26 | [259] Simona Waltert v Mandy Minella [187] | 6-1,7-6 | |
| ITF W25 Oeiras | 04/22 13:40 | 26 | [259] Simona Waltert v Raluca Georgiana Serban [341] | 6-2,7-5 | |
| ITF W25 Oeiras | 04/21 09:00 | 25 | [136] Xiyu Wang v Simona Waltert [259] | 4-6,2-6 | |
| ITF W25 Oeiras | 04/20 09:00 | 24 | Ganna Poznikhirenko v Simona Waltert | 3-6,4-6 | |
| ITF W60 Bellinzona | 04/10 08:55 | 28 | [345] Lucia Bronzetti v Simona Waltert [284] | 6-7,6-4,6-2 | |
| ITF W60 Bellinzona | 04/09 11:30 | 27 | [284] Simona Waltert v Jana Fett [207] | 6-4,2-6,7-5 | |
| ITF W60 Bellinzona | 04/08 14:45 | 26 | Simona Waltert v Alexandra Eala | 7-5,3-6,6-2 | |
| ITF W60 Bellinzona | 04/07 13:10 | 25 | [183] Antonia Lottner v Simona Waltert [284] | 6-3,6-7,4-6 | |
| ITF W60 Bellinzona | 04/05 13:15 | 24 | [284] Simona Waltert v Amandine Hesse [280] | 6-1,6-4 | |
| ITF W15 Manacor | 03/12 09:00 | 27 | [285] Simona Waltert v Camilla Rosatello [419] | 6-7,6-4,4-6 | |
| ITF W15 Manacor | 03/11 09:00 | 26 | [285] Simona Waltert v Francisca Jorge [462] | 6-2,7-6 | |
| ITF W15 Manacor | 03/10 12:15 | 25 | Simona Waltert v Alexandra Eala | 6-4,2-6,7-5 | |
| ITF W25 Manacor | 03/03 08:50 | 25 | Simona Waltert v Alexandra Eala | 1-6,4-6 | |
| ITF W25 Altenkirchen | 02/21 12:00 | 29 | [144] Clara Tauson v Simona Waltert [301] | 3-6,6-1,6-3 | |
| ITF W25 Altenkirchen | 02/20 11:55 | 28 | [136] Viktorija Golubic v Simona Waltert [301] | 4-6,2-6 | |
| ITF W25 Altenkirchen | 02/19 13:00 | 27 | Simona Waltert v Maryna Zanevska | Retired | |
| ITF W25 Altenkirchen | 02/18 11:25 | 26 | [301] Simona Waltert v Yuriko Lily Miyazaki [345] | 6-4,6-4 | |
| ITF W25 Altenkirchen | 02/16 16:00 | 25 | [128] Tamara Korpatsch v Simona Waltert [301] | 1-6,3-6 |