Stadium: Court 5 Round: 45 Ground: Hardcourt outdoor
| ITF Tunisia F36 | 2018/10/21 09:00 | Alessandro Bega v Jonathan Gray | 6-7,4-6 |
| ITF Tunisia F36 | 2018/10/20 09:30 | Lance-Pierre Du Toit v Jonathan Gray | 6-7,4-6 |
| ITF Tunisia F36 | 2018/10/19 10:50 | Pierre Delage v Jonathan Gray | 5-7,6-7 |
| ITF Tunisia F35 | 2018/10/09 10:15 | Jonathan Gray v Luca Staeheli | 4-6,7-5,2-6 |
| ITF Portugal F18 | 2018/09/26 13:30 | Jonathan Gray v Joao Monteiro | 2-6,6-3,2-6 |
| ITF Great Britain F5 | 2018/09/19 10:30 | Antoine Bellier v Jonathan Gray | 6-4,6-1 |
| ITF Great Britain F5 | 2018/09/18 09:45 | Ryan Nijboer v Jonathan Gray | 6-4,3-6,2-6 |
| ITF France F17 | 2018/09/12 14:00 | Christopher Heyman v Jonathan Gray | 3-6,6-4,6-2 |
| Challenger Fairfield | 2018/10/06 19:25 | Jan Choinski v William Griffith | 6-4,7-6 |
| ITF Canada F6 | 2018/09/04 15:40 | Alejandro Gomez v William Griffith | 6-2,6-2 |
| Challenger Aptos | 2018/08/04 20:55 | Alexander Ward v William Griffith | 7-6,7-6 |
| Challenger Aptos | 2018/08/04 16:00 | William Griffith v Brian Brogan | 6-1,6-0 |
| ITF Canada F5 | 2018/07/08 17:00 | Tom Fawcett v William Griffith | 6-2,7-5 |
| ITF Canada F5 | 2018/07/07 18:50 | Jacob Grills v William Griffith | 6-2,4-6,4-6 |
| ITF Canada F5 | 2018/07/06 19:40 | David Volfson v William Griffith | 6-7,6-2,3-6 |
| ITF Canada F5 | 2018/07/05 17:00 | William Griffith v Wishaya Trongcharoenchaikul | 3-6,6-1,6-3 |