Stadium: Court 2 Round: 26 Ground: Hardcourt outdoor
| Challenger St Remy Qual | 2016/09/04 08:00 | Crepaldi, Erik v Gray, Jonathan | 6-4,4-6,6-3 |
| ITF Greece F4 | 2018/03/21 11:10 | Gray, Jonathan v Tikhomirov, Maksim | 7-6,6-2 |
| ITF Greece F3 | 2018/03/15 12:10 | Gray, Jonathan v Zgombic, Fran Zvonimir | 5-7,6-7 |
| ITF Greece F3 | 2018/03/14 08:00 | Gray, Jonathan v Enrico Dalla Valle | 6-4,6-7,7-6 |
| ITF Greece F2 | 2018/03/08 10:35 | Authom, Maxime v Gray, Jonathan | 6-2,7-6 |
| ITF Greece F2 | 2018/03/07 10:00 | Van Terheijden, Tim v Gray, Jonathan | 6-7,0-6 |
| ITF Greece F1 | 2018/03/01 08:00 | Giovanni Fonio v Gray, Jonathan | 6-4,1-6,6-3 |
| ITF Greece F1 | 2018/02/27 08:30 | Kohen, Alan v Gray, Jonathan | 6-4,2-6,3-6 |
| ITF Great Britain F3 | 2018/02/13 15:15 | Glasspool, Lloyd v Gray, Jonathan | 7-6,6-1 |
| ITF Greece F4 | 2018/03/20 08:00 | Petros Tsitsipas v Crepaldi, Erik | 4-6,0-6 |
| ITF Greece F3 | 2018/03/16 11:55 | Tepavac, Marko v Crepaldi, Erik | 6-3,6-2 |
| ITF Greece F3 | 2018/03/15 09:05 | Crepaldi, Erik v Balzerani, Riccardo | 6-4,4-6,6-3 |
| ITF Greece F3 | 2018/03/13 09:30 | Alexandros Skorilas v Crepaldi, Erik | 2-6,3-6 |
| ITF Greece F2 | 2018/03/06 12:55 | Crepaldi, Erik v Adrian Bodmer | 4-6,6-3,4-6 |
| ITF Portugal F2 | 2018/03/03 11:00 | Crepaldi, Erik v Hugo Gaston | 4-6,5-7 |
| ITF Portugal F2 | 2018/03/02 19:00 | Crepaldi, Erik v Hugo Gaston | 4-6,5-6 |
| ITF Portugal F2 | 2018/03/01 14:00 | Crepaldi, Erik v Diarra, Gibril | 6-2,6-4 |