Stadium: Central Round: 26 Ground: Clay
| ITF W60 Montreux | 2021/09/08 15:10 | Simona Waltert v Tatiana Pieri | 7-6,6-2 |
| ITF W60 Collonge-Bellerive | 2021/09/02 12:25 | Beatriz Haddad Maia v Simona Waltert | 6-1,4-6,6-3 |
| ITF W60 Collonge-Bellerive | 2021/09/01 11:25 | Simona Waltert v Amina Anshba | 6-2,6-1 |
| ITF W60 Prerov | 2021/08/27 11:25 | Simona Waltert v Linda Noskova | 3-6,3-6 |
| ITF W60 Prerov | 2021/08/26 07:55 | Simona Waltert v Daniela Vismane | 7-5,4-6,6-2 |
| ITF W60 Prerov | 2021/08/25 11:25 | Simona Waltert v Alice Rame | 6-3,6-3 |
| ITF W60 Olomouc | 2021/07/22 10:45 | Zaja, Anna v Simona Waltert | 7-6,6-1 |
| ITF W60 Olomouc | 2021/07/21 13:10 | Kilnarova, Monika v Simona Waltert | 0-6,7-5,3-6 |
| ITF W60 Montreux | 2021/09/08 07:30 | Camilla Rosatello v Vikhlyantseva, Natalia | 2-6,1-6 |
| US Open Women | 2021/08/25 18:25 | Vikhlyantseva, Natalia v Anna Kalinskaya | 0-6,2-6 |
| WTA Palermo | 2021/07/22 14:00 | Vikhlyantseva, Natalia v Astra Sharma | 4-6,5-7 |
| WTA Palermo | 2021/07/19 17:45 | Leonie Kung v Vikhlyantseva, Natalia | 3-6,2-6 |
| WTA Lausanne | 2021/07/16 16:15 | Zanevska, Maryna v Vikhlyantseva, Natalia | 7-5,6-4 |
| WTA Lausanne | 2021/07/15 09:00 | Vikhlyantseva, Natalia v Jasmine Paolini | 6-1,6-3 |
| WTA Lausanne | 2021/07/12 13:30 | Katarina Zavatska v Vikhlyantseva, Natalia | 6-4,4-6,0-6 |
| WTA Bastad | 2021/07/05 12:20 | Kateryna Baindl v Vikhlyantseva, Natalia | 6-2,6-4 |