Stadium: Court 5 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Sharm El Sheikh | 2021/10/10 08:00 | Petr Hajek v Gabriel Decamps | 5-7,7-6,0-6 |
| ITF M15 Sharm El Sheikh | 2021/10/09 08:00 | Lorenzo Bocchi v Petr Hajek | 6-7,4-6 |
| ITF M15 Sharm El Sheikh | 2021/10/08 08:00 | S D Prajwal Dev v Petr Hajek | 5-7,2-6 |
| ITF M15 Sharm El Sheikh | 2021/10/07 08:00 | Petr Hajek v Nitin Kumar Sinha | 6-3,6-7,6-4 |
| ITF M15 Sharm El Sheikh | 2021/10/06 10:10 | Lukas Pokorny v Petr Hajek | 4-6,6-7 |
| UTR Pro Tennis Series Ricany | 2021/09/18 09:00 | Petr Hajek v Andrew Paulson | 4-6,1-6 |
| UTR Pro Tennis Series Ricany | 2021/09/17 12:00 | Stefanos Sakellaridis v Petr Hajek | 6-7,2-6 |
| UTR Pro Tennis Series Ricany | 2021/09/16 07:00 | Antonin Bolardt v Petr Hajek | 2-6,1-6 |
| ITF M15 Monastir | 2021/07/01 08:30 | Ji Hoon Son v Omni Kumar | 3-6,2-6 |
| ITF M15 Monastir | 2021/06/30 10:30 | Ji Hoon Son v Kazuma Kawachi | 6-3,6-4 |
| ITF M15 Monastir | 2021/06/28 14:00 | Leonardo Lopez Linquet v Ji Hoon Son | 0-6,2-6 |
| ITF M15 Monastir | 2021/06/28 09:00 | Ji Hoon Son v Mauro De Maio | 6-2,6-2 |
| ITF M15 Monastir | 2021/06/27 09:00 | Areg Stepanian v Ji Hoon Son | 1-6,0-6 |
| ITF M15 Monastir | 2021/06/21 08:00 | Uisung Park v Ji Hoon Son | 6-3,6-0 |
| ITF M15 Monastir | 2021/06/20 09:00 | Brandon Lam v Ji Hoon Son | 6-7,4-6 |
| ITF M15 Monastir | 2021/06/16 11:50 | Ji Hoon Son v Ajeet Rai | 2-6,6-3,2-6 |