| ITF Grecia F5 | 2018/03/25 08:00 | Vlad Cristian Niculae v Petros Tsitsipas | 6-2,7-5 |
| ITF Grecia F4 | 2018/03/20 08:00 | Petros Tsitsipas v Erik Crepaldi | 4-6,0-6 |
| ITF Grecia F3 | 2018/03/10 07:30 | Michalis Sakellaridis v Petros Tsitsipas | 6-3,6-2 |
| ITF Grecia F1 | 2018/02/28 08:30 | Petros Tsitsipas v Luke Johnson | 2-6,2-6 |
| Challenger de Quimper - Clasificación | 2018/01/28 12:25 | Petros Tsitsipas v Tristan Lamasine | 3-6,1-6 |
| ITF Grecia F10 | 2017/11/22 07:30 | Maksim Tikhomirov v Petros Tsitsipas | 6-3,6-0 |
| ITF Grecia F7 | 2017/11/02 11:35 | Petros Tsitsipas v Andres Artunedo Martinavarr | 2-6,1-6 |
| ITF Grecia F7 | 2017/11/02 04:00 | Petros Tsitsipas v Andres Artunedo Martinavarr | 2-6,1-6 |
| Copa Davis | 2018/04/04 07:00 | Egor Matvievici v Timo Kranz | 7-6,6-2 |
| ITF Turquía F12 | 2018/03/24 06:30 | Egor Matvievici v Adam Thornton-Brown | 4-6,1-6 |
| ITF Turquía F11 | 2018/03/17 07:00 | Egor Matvievici v Marko Miladinovic | 7-6,2-6,3-6 |
| ITF Turquía F10 | 2018/03/11 07:00 | Timur Khabibulin v Egor Matvievici | 5-7,6-4,6-3 |
| ITF Turquía F10 | 2018/03/10 07:00 | Jody Turnquest v Egor Matvievici | 6-1,4-6,5-7 |
| ITF Turquía F9 | 2018/03/03 07:00 | Egor Matvievici v Alberto Cammarata | 0-6,1-6 |
| ITF España F5 | 2018/02/10 13:30 | Eduard Guell Bartrina v Egor Matvievici | 6-2,6-0 |
| ITF España F4 | 2018/02/03 10:00 | Matvey Minin v Egor Matvievici | 6-1,3-6,6-3 |