Stadium: Court 5 Round: 44 Ground: Clay
| ITF M15 Zlatibor | 2019/09/15 06:30 | Tadija Radovanovic v Christos Keisidis | 2-6,1-6 |
| ITF M15 Irákleio | 2019/05/28 07:00 | Christos Keisidis v Gian Marco Ortenzi | 4-6,4-6 |
| ITF M15 Irákleio | 2019/05/27 07:00 | Calum Puttergill v Christos Keisidis | 4-6,3-6 |
| ITF M15 Irákleio | 2019/05/20 07:00 | Christos Keisidis v Moritz Thiem | 2-6,3-6 |
| ITF M15 Sozopol | 2019/05/07 09:00 | Boris Pokotilov v Christos Keisidis | 6-3,3-6,10-3 |
| ITF Bulgaria F1 | 2018/05/15 07:00 | Christos Keisidis v Alexander Igoshin | 4-6,6-1,1-6 |
| ITF Bulgaria F1 | 2018/05/13 07:00 | Zlatan Palazov v Christos Keisidis | 5-7,0-6 |
| ITF Serbia F8 Qual | 2016/09/17 07:00 | Shinnosuke Hiramatsu v Christos Keisidis | 6-4,6-3 |
| ITF M15 Zlatibor | 2019/09/15 06:30 | Roko Horvat v Dusan Rajic | 6-2,6-3 |
| ITF M15 Baja | 2019/08/15 08:00 | Roko Horvat v Darko Jandric | 6-4,4-6,3-6 |
| ITF M15 Baja | 2019/08/13 08:00 | Petar Pjevcevic v Roko Horvat | 0-6,4-6 |
| ITF M15 Baja | 2019/08/12 08:00 | Roko Horvat v Martin Zeljenka | 6-3,2-6,10-7 |
| ITF M25 Vogau | 2019/08/05 11:00 | Roko Horvat v Deni Zmak | 1-6,3-6 |
| ITF M15 Telfs | 2019/07/09 09:00 | Mick Veldheer v Roko Horvat | 6-1,7-5 |
| ITF M15 Belgrad | 2019/07/03 09:55 | Roko Horvat v Ljubomir Celebic | 2-6,3-6 |
| ITF M15 Opatija | 2019/03/27 11:30 | Goran Markovic v Roko Horvat | 2-6,6-3,7-5 |