Stadium: Hard 1 Round: 25 Ground: Hardcourt outdoor
| ITF Greece F7 | 2018/11/08 08:55 | Baptiste Crepatte v Petros Tsitsipas | 6-3,3-6,6-3 |
| ITF Greece F7 | 2018/11/07 08:55 | Emmanuel Luria v Petros Tsitsipas | 2-6,6-7 |
| ITF Greece F7 | 2018/11/05 07:30 | Eric Ahren Moonga v Petros Tsitsipas | 7-5,3-6,4-6 |
| ITF Greece F7 | 2018/11/03 10:00 | Hans Albert Schubert v Petros Tsitsipas | 1-6,3-6 |
| ITF Tunisia F35 | 2018/10/06 08:30 | Jakob Groener v Petros Tsitsipas | 7-6,7-5 |
| ITF Tunisia F34 | 2018/09/30 10:00 | Petros Tsitsipas v Matteo Arnaldi | 0-6,2-6 |
| ITF Tunisia F33 | 2018/09/24 09:00 | Petros Tsitsipas v Alban Meuffels | 0-6,2-6 |
| ITF Tunisia F33 | 2018/09/23 10:30 | Petros Tsitsipas v Adam Nagoudi | 6-0,6-3 |
| ITF Greece F7 | 2018/11/06 07:30 | Vit Kopriva v Conor Berg | 6-1,6-1 |
| ITF Greece F6 | 2018/10/30 07:30 | Conor Berg v Francesco Ferrari | 6-7,6-7 |
| ITF USA F26 | 2018/09/26 17:00 | Conor Berg v Lucas Gomez | 6-4,6-7,1-6 |
| ITF USA F25 | 2018/09/20 17:00 | Alessandro-D Ventre v Conor Berg | 6-3,6-4 |
| ITF USA F25 | 2018/09/18 17:00 | Andrea Bolla v Conor Berg | 2-6,6-3,6-7 |
| ITF USA F24 | 2018/09/11 16:30 | Paul Oosterbaan v Conor Berg | 6-4,6-3 |
| ITF Belarus F3 | 2018/08/19 11:30 | Conor Berg v Ben Jones | 6-3,6-7,5-7 |
| ITF Belarus F2 | 2018/08/15 09:40 | Conor Berg v Sergey Betov | 6-7,5-7 |