Stadium: Hard 20 Round: 62 Ground: Hardcourt outdoor
| ITF M15 Irákleio | 2021/11/15 08:00 | Ioannis Papounidis v Dong Ju Kim | 2-6,3-6 |
| ITF M15 Irákleio | 2021/11/14 11:00 | Jonas Trinker v Ioannis Papounidis | 6-3,1-6,8-10 |
| ITF M15 Irákleio | 2021/11/07 07:00 | Alec Deckers v Ioannis Papounidis | 6-3,7-5 |
| ITF M15 Irákleio | 2021/11/03 11:00 | Ioannis Papounidis v Francesco Maestrelli | 1-6,2-6 |
| ITF M15 Irákleio | 2021/11/02 08:30 | Ioannis Papounidis v Elgin Khoeblal | 4-6,6-2,10-7 |
| ITF M15 Irákleio | 2021/11/01 09:00 | Michael Weindl v Ioannis Papounidis | 3-6,6-2,3-10 |
| ITF M15 Irákleio | 2021/06/08 06:30 | Ioannis Papounidis v Ben Jones | 0-6,4-6 |
| ITF M15 Irákleio | 2021/06/06 07:30 | Petr Hajek v Ioannis Papounidis | 4-6,7-5,6-10 |
| ITF M15 Irákleio | 2021/11/17 13:25 | Sergis Kyratzis v Guy Den Heijer | 6-0,4-6,4-6 |
| ITF M15 Irákleio | 2021/11/07 11:00 | Federico Salomone v Sergis Kyratzis | 6-3,6-2 |
| ITF M15 Irákleio | 2021/11/02 10:45 | Sergis Kyratzis v Kyle Seelig | 6-4,3-6,3-6 |
| ITF M15 Sharm El Sheikh | 2021/10/11 08:30 | Sergis Kyratzis v Simonas Zukauskas | 4-6,4-6 |
| ITF M15 Sharm El Sheikh | 2021/10/05 08:00 | Saba Purtseladze v Sergis Kyratzis | 6-4,6-3 |
| ITF M15 Kairo | 2021/08/02 12:30 | Yuichiro Inui v Sergis Kyratzis | 6-1,6-3 |
| ITF M15 Kairo | 2021/08/01 12:30 | Sergis Kyratzis v Nicolas Agustin Lema | 3-6,6-2,10-4 |
| ITF M15 Kairo | 2021/07/25 11:00 | Sergis Kyratzis v Alessandro Ragazzi | 2-6,2-6 |