Stadium: Court 4 Round: 54 Ground: Hardcourt indoor
| ITF - M15 St Petersburg - Calificari | 2021/04/11 11:35 | Alafia Ayeni v Semen Voronin | 6-4,6-3 |
| ITF - M15 St Petersburg | 2021/04/04 09:05 | Semen Voronin v Matic Spec | 4-6,3-6 |
| ITF - M15 St Petersburg | 2021/02/08 11:05 | Semen Voronin v Aliaksandr Prudnikau | 4-6,0-6 |
| ITF - M15 St Petersburg - Calificari | 2021/02/07 15:55 | Shalva Dzhanashia v Semen Voronin | 7-6,2-6,6-10 |