Stadium: Court 6 Round: 54 Ground: Hardcourt indoor
| Challenger St. Petersburg Qual | 2021/03/07 09:35 | Khumoyun Sultanov v Daniil Glinka | 7-6,6-4 |
| Challenger St. Petersburg | 2021/02/28 09:10 | Daniil Glinka v Skander Mansouri | 6-3,6-7,5-7 |
| ITF M15 St Petersburg Qual | 2021/02/07 12:45 | Daniil Glinka v Chad Kissell | 6-2,4-6,8-10 |
| ITF M15 St Petersburg | 2021/02/03 08:20 | Jan Choinski v Daniil Glinka | 6-1,6-4 |
| ITF M15 St Petersburg | 2021/02/01 07:00 | Daniil Glinka v Leonid Sheyngezikht | 6-3,6-4 |
| ITF M15 Parnu | 2020/11/05 08:00 | Daniil Glinka v Mick Veldheer | 6-7,6-7 |
| ITF M15 Parnu | 2020/11/03 08:00 | Daniil Glinka v Siim Troost | 6-3,6-4 |
| ITF M15 Monastir | 2020/10/24 08:30 | Wojciech Marek v Daniil Glinka | 6-3,6-4 |
| ITF M15 Bratislava | 2021/03/10 14:40 | Stepan Pecak v Martin Krumich | 7-6,5-7,1-6 |
| ITF M15 Bratislava | 2021/03/09 09:00 | Niklas Rohrer v Stepan Pecak | 6-7,6-4,10-12 |
| ITF M15 Bratislava | 2021/03/08 12:00 | Andrej Krajcik v Stepan Pecak | 3-6,2-6 |
| ITF M15 Bratislava | 2021/03/01 09:00 | Stepan Pecak v Mate Voros | 5-7,3-6 |
| ITF M15 Sharm El Sheikh | 2021/02/10 12:10 | Stepan Pecak v Sandro Ehrat | 2-6,5-7 |
| ITF M15 Sharm El Sheikh | 2021/01/31 17:30 | Stepan Pecak v Emiliano Maggioli | 1-6,0-6 |
| ITF M25 Pardubice | 2020/09/27 10:30 | Francisco Comesana v Stepan Pecak | 6-0,6-0 |
| ITF M25 Jablonec Nad Nisou | 2020/09/21 11:00 | Stepan Pecak v Matias Zukas | 6-7,3-6 |