Estadio: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF W60 Rancho Santa Fe | 2021/10/14 18:15 | Rebecca Peterson v Mayo Hibi | 6-1,6-1 |
| ITF W60 Rancho Santa Fe | 2021/10/13 18:10 | Mayo Hibi v Marine Partaud | 6-3,6-3 |
| WTA Indian Wells | 2021/10/04 20:20 | Mayo Hibi v Olga Govortsova | 2-6,6-3,1-6 |
| ITF W60 Berkeley | 2021/10/02 18:40 | Mayo Hibi v Usue Maitane Arconada | 3-6,7-6,4-6 |
| ITF W60 Berkeley | 2021/10/01 17:00 | Mayo Hibi v Louisa Chirico | 6-2,6-3 |
| ITF W60 Berkeley | 2021/09/30 17:55 | Mayo Hibi v Victoria Duval | 6-0,7-6 |
| ITF W60 Berkeley | 2021/09/29 20:45 | Mayo Hibi v Jada Myii Hart | 6-3,6-2 |
| US Open - Femenino | 2021/08/25 19:35 | Elvina Kalieva v Mayo Hibi | 6-3,6-4 |
| ITF W100 Dubái | 2021/11/22 07:40 | Oksana Selekhmeteva v Peangtarn Plipuech | 6-4,6-1 |
| ITF W100 Dubái | 2021/11/21 07:45 | Oksana Selekhmeteva v Vivian Heisen | 6-2,6-3 |
| ITF W80 Les Franqueses del Vallés | 2021/10/26 08:30 | Andrea Lazaro Garcia v Oksana Selekhmeteva | 7-6,6-1 |
| WTA Moscú | 2021/10/19 17:05 | Veronika Kudermetova v Oksana Selekhmeteva | 4-6,7-6,6-4 |
| WTA Moscú | 2021/10/17 12:25 | Diana Shnaider v Oksana Selekhmeteva | 4-6,6-7 |
| WTA Moscú | 2021/10/16 16:15 | Oksana Selekhmeteva v Arina Rodionova | 6-3,3-6,6-4 |
| ITF W80 Le Neubourg | 2021/10/02 13:45 | Anna Bondar v Oksana Selekhmeteva | 7-6,6-0 |
| ITF W80 Le Neubourg | 2021/10/01 15:05 | Oksana Selekhmeteva v Robin Anderson | 6-4,5-7,7-6 |