| Daily Premier Tour | 2020/04/02 22:21 | Geraskin, Nikita v Firsin, Grigorii | 4-6,4-6 |
| Exhibition | 2020/03/19 22:47 | Firsin, Grigorii v Geraskin, Nikita | 2-6,4-6 |
| Daily Premier Tour | 2020/04/05 01:23 | Geraskin, Nikita v Evgeny Rudnovsky | 6-3,6-4 |
| Daily Premier Tour | 2020/04/02 22:21 | Geraskin, Nikita v Firsin, Grigorii | 4-6,4-6 |
| Daily Premier Tour | 2020/04/02 00:19 | Geraskin, Nikita v Gumenyuk, Roman | 3-6,3-6 |
| Daily Premier Tour | 2020/03/30 22:01 | Riman, Edward v Geraskin, Nikita | 6-3,6-4 |
| Daily Premier Tour | 2020/03/30 02:12 | Geraskin, Nikita v Semen Sharlay | 6-7,3-6 |
| Daily Premier Tour | 2020/03/27 22:27 | Geraskin, Nikita v Pashukevich, Mark | 6-3,2-6,5-7 |
| Daily Premier Tour | 2020/03/25 22:47 | Riman, Edward v Geraskin, Nikita | 3-6,3-6 |
| Daily Premier Tour | 2020/03/23 22:28 | Geraskin, Nikita v Riman, Edward | 5-7,3-6 |
| Daily Premier Tour | 2020/04/02 22:21 | Geraskin, Nikita v Firsin, Grigorii | 4-6,4-6 |
| Daily Premier Tour | 2020/03/20 09:53 | Riman, Edward v Firsin, Grigorii | 6-3,6-4 |
| Exhibition | 2020/03/19 22:47 | Firsin, Grigorii v Geraskin, Nikita | 2-6,4-6 |
| Burgas, Singles Qualifying M-ITF-BUL-05A | 2019/10/07 07:00 | Firsin, Grigorii v Borsan, Doru Junior | 3-6,0-6 |