Stadium: Hard 20 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Heraklion | 2021/05/31 06:30 | Petr Hajek v Toby D. Boyer | 4-6,7-6,6-10 |
| ITF M15 Heraklion | 2021/05/30 09:00 | Petr Hajek v Areg Stepanian | 7-5,6-2 |
| ITF M15 Heraklion | 2021/05/23 10:00 | Petr Hajek v Menelaos Efstathiou | 3-6,2-6 |
| ITF M15 Heraklion | 2021/05/17 07:00 | Petr Hajek v Evangelos Kypriotis | 6-4,0-6,8-10 |
| ITF M15 Sibenik | 2021/04/20 09:15 | Petr Hajek v Marino Jakic | 6-4,4-6,1-10 |
| ITF M15 Sibenik | 2021/04/19 10:35 | Petr Hajek v Giulio Colacioppo | 6-0,6-2 |
| ITF M15 Sibenik | 2021/04/18 10:00 | Petr Hajek v Jan Jermar | 6-2,6-1 |
| ITF M15 Sharm El Sheikh | 2021/03/25 09:35 | Petr Hajek v Yu Hsiou Hsu | 3-6,2-6 |
| ITF M15 Heraklion | 2021/05/31 06:30 | Ioannis Papounidis v Volodymyr Uzhylovskyi | 3-6,5-7 |
| ITF M15 Heraklion | 2021/05/30 06:30 | Josef Southcombe v Ioannis Papounidis | 6-7,6-4,6-10 |
| ITF M15 Heraklion | 2021/05/23 06:30 | Ioannis Papounidis v Harry Wendelken | 6-4,3-6,3-10 |
| ITF Greece F7 | 2018/11/03 10:00 | Mathieu Garcia v Ioannis Papounidis | 6-1,6-2 |
| ITF Greece F6 | 2018/10/29 07:30 | Ioannis Papounidis v Domen Gostincar | 3-6,3-6 |
| ITF Greece F6 | 2018/10/28 07:30 | Shinnosuke Hiramatsu v Ioannis Papounidis | 7-5,1-6,0-6 |
| ITF Spain F29 | 2018/09/22 07:00 | Ioannis Papounidis v Rayan Ghedjemis | 3-6,1-6 |
| ITF Spain F18 Qual | 2018/07/07 12:30 | Joffrey De Schepper v Ioannis Papounidis | 6-1,6-2 |