Stadium: Court Tsitsipas Round: 25 Ground: Hardcourt outdoor
| 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 Cairo | 2021/08/02 12:30 | Yuichiro Inui v Sergis Kyratzis | 6-1,6-3 |
| ITF M15 Cairo | 2021/08/01 12:30 | Sergis Kyratzis v Nicolas Agustin Lema | 3-6,6-2,10-4 |
| ITF M15 Cairo | 2021/07/25 11:00 | Sergis Kyratzis v Alessandro Ragazzi | 2-6,2-6 |
| ITF M15 Sofia | 2021/07/04 10:30 | Christoffer Solberg v Sergis Kyratzis | 6-1,6-3 |
| ITF M15 Antalya | 2021/06/27 06:30 | Daniil Glinka v Sergis Kyratzis | 3-6,6-4,10-8 |
| ITF M15 Heraklion | 2021/05/23 08:00 | Ugo Blanchet v Sergis Kyratzis | 6-0,6-0 |
| ITF M15 Ithaca | 2021/10/07 14:00 | Kyle Seelig v Radu Mihai Papoe | 2-6,6-1,2-6 |
| ITF M15 Ithaca | 2021/10/06 13:00 | Kyle Seelig v Petro Orlando Fellin | 6-1,7-5 |
| ITF M25 Johannesburg | 2021/09/24 09:45 | Kyle Seelig v Benjamin Lock | 6-7,5-7 |
| ITF M25 Johannesburg | 2021/09/23 07:00 | Igor Marcondes v Kyle Seelig | 6-1,6-7,1-6 |
| ITF M25 Johannesburg | 2021/09/22 10:05 | Peter Goldsteiner v Kyle Seelig | 0-6,6-2,2-6 |
| ITF M25 Johannesburg | 2021/09/14 07:50 | Kyle Seelig v Filip Peliwo | 3-6,4-6 |
| ITF M15 Monastir | 2021/09/05 08:30 | Kyle Seelig v Renta Tokuda | 5-7,0-6 |
| ITF M15 Monastir | 2021/09/04 08:30 | Li Tu v Kyle Seelig | 5-7,2-6 |