Stadium: Court 1 Round: 27 Ground: Hardcourt indoor
| WTA Courmayeur WD | 2021/10/26 19:05 | Gatto Monticone/Pigato v Kalashnikova O / Kato M | 3-6,6-3,6-10 |
| WTA Moscow WD | 2021/10/20 16:10 | Kalashnikova O / Kato M v Bouzkova/Hradecka | 4-6,2-6 |
| WTA Moscow WD | 2021/10/19 13:20 | Lechemia/Santamaria v Kalashnikova O / Kato M | 1-6,6-4,7-10 |
| WTA Ostrava WD | 2021/09/22 13:15 | Kalashnikova O / Kato M v Hozumi/Ninomiya | 4-6,2-6 |
| WTA Ostrava WD | 2021/09/20 12:00 | Kalashnikova O / Kato M v Lohoff/Panova | 6-1,6-2 |
| Open d'Australie - Double Femmes | 2020/01/22 00:00 | Chan H-C / Chan L v Kalashnikova O / Kato M | 7-6,6-3 |
| WTA - Hobart - Doubles Femmes | 2020/01/14 01:35 | Kichenok N / Mirza S v Kalashnikova O / Kato M | 2-6,7-6,10-3 |
| WTA Tenerife WD | 2021/10/22 13:35 | Eikeri/Perez v Hozumi E / Zhang S | 6-3,4-6,10-6 |
| WTA Tenerife WD | 2021/10/21 13:00 | Gumulya/Plipuech v Hozumi E / Zhang S | 1-6,2-6 |
| WTA Tenerife WD | 2021/10/19 14:45 | Raina A / van Der Hoek R v Hozumi E / Zhang S | 4-6,3-6 |
| WTA San Jose WD | 2021/08/05 22:00 | Perez/Peschke v Hozumi E / Zhang S | 6-3,6-1 |
| WTA San Jose WD | 2021/08/03 21:00 | Hozumi E / Zhang S v Jones/Scotty | 6-1,3-6,10-3 |
| WTA Palermo WD | 2021/07/23 21:00 | Hozumi E / Zhang S v Paoletti M / Pigato L | 4-6,6-2,10-7 |
| WTA Palermo WD | 2021/07/21 14:00 | Hozumi E / Zhang S v Bektas E / Moore T | 6-3,7-5 |
| WTA Lausanne WD | 2021/07/17 15:25 | Hozumi E / Zhang S v Eikeri/Grammatikopoulou | 6-7,2-6 |