| Daily Premier Tour | 2020/06/07 02:26 | Grigorii Firsin v Gleb Kolyshkov | 3-6,6-3,5-6 |
| Daily Premier Tour | 2020/06/02 00:00 | Anney Laska v Grigorii Firsin | 6-3,6-4 |
| Daily Premier Tour | 2020/06/01 02:45 | Grigorii Firsin v Daniil Budov | 6-3,6-3 |
| Daily Premier Tour | 2020/05/30 02:26 | Grigorii Firsin v Daniil Budov | 6-7,5-7 |
| Daily Premier Tour | 2020/05/23 23:36 | Anton Bandaryk v Grigorii Firsin | 6-3,7-6 |
| Daily Premier Tour | 2020/05/23 14:26 | Grigorii Firsin v Artur Martinkevich | 6-3,6-2 |
| Daily Pro Tour | 2020/05/19 10:23 | Pavel Leonchik v Grigorii Firsin | 6-2,6-3 |
| Daily Premier Tour | 2020/05/19 02:30 | Roman Gumenyuk v Grigorii Firsin | 7-5,6-3 |