| ITF Greece F2 | 04/02 08:50 | - | Stefanos Tsitsipas v Kapogiannis, Charalampos | 6-2,6-7,6-3 | |
| ITF Greece F2 | 04/01 10:00 | - | Glancy, Daniel v Kapogiannis, Charalampos | 6-4,3-6,3-6 | |
| ITF Greece F2 Qual | 03/30 07:50 | - | Kapogiannis, Charalampos v Khomentovskiy, Matvey | 6-3,6-0 | |
| ITF Greece F2 Qual | 03/29 06:15 | - | Kapogiannis, Charalampos v Wakita, Shunsuke | 6-4,6-1 | |
| ITF Greece F9 Qual | 11/14 10:35 | - | Kapogiannis, Charalampos v Bellotti, Riccardo | 6-4,1-6,1-6 | |
| ITF Greece F9 Qual | 11/13 10:20 | - | Kapogiannis, Charalampos v Vucic, Ilija | 7-5,5-7,6-3 | |
| ITF Greece F9 Qual | 11/12 09:15 | - | Petrovic, Danilo v Kapogiannis, Charalampos | 4-6,3-6 | |
| ITF Greece F9 Qual | 11/06 12:35 | - | Kapogiannis, Charalampos v Jankovic, Miki | 5-7,7-6,4-6 | |
| ITF Greece F9 | 10/21 08:35 | - | Fabbiano, Thomas v Kapogiannis, Charalampos | 6-3,6-0 | |
| ITF Greece F8 | 10/15 11:30 | - | Kapogiannis, Charalampos v Simon, Tobias | 3-6,4-6 | |
| ITF Romania F12 | 08/21 10:00 | - | Stefano Napolitano v Kapogiannis, Charalampos | 6-2,6-2 | |
| ITF Romania F12 | 08/20 09:30 | - | Garzelli, Francesco v Kapogiannis, Charalampos | 1-6,3-6 | |
| ITF Greece F5 | 04/09 10:00 | - | Sikora, Adrian v Kapogiannis, Charalampos | 3-6,6-4,6-1 | |
| ITF Greece F3 | 03/27 09:35 | - | Kapogiannis, Charalampos v Aldin Setkic | 6-4,0-6,2-6 | |
| ITF Greece F3 | 03/26 11:50 | - | Fermosell, Jaime v Kapogiannis, Charalampos | 3-6,4-6 | |
| ITF Greece F2 | 03/20 11:20 | - | Kapogiannis, Charalampos v Yann Marti | 2-6,1-6 | |
| ITF Greece F2 | 03/18 10:45 | - | Vucic, Ilija v Kapogiannis, Charalampos | 4-6,6-4,0-6 |