Round: 60 Ground: Hardcourt outdoor
| ITF USA F14 | 2018/06/09 16:00 | Matthew Kandath v Jonathan Sorbo | 6-4,6-4 |
| ITF USA F12 | 2018/04/20 13:00 | Edward Bourchier v Jonathan Sorbo | 6-0,6-2 |
| Challenger Drummondville Qual | 2018/03/11 17:45 | Jonathan Sorbo v Chih Chi Huang | 2-6,3-6 |
| ITF Canada F2 Qual | 2018/03/04 15:00 | Jonathan Sorbo v Danny Thomas | 3-6,1-6 |
| ITF Canada F2 Qual | 2018/03/03 15:00 | Jonathan Sorbo v Raphael A-Laurin | 6-4,6-2 |
| ITF Canada F1 Qual | 2018/02/24 15:00 | Jonathan Sorbo v Nicholas Shamma | 4-6,5-7 |
| ITF USA F5 | 2018/01/19 13:00 | Vlad Andrei Dancu v Jonathan Sorbo | 2-6,6-2,6-1 |
| ITF USA F3 Qual | 2018/01/06 16:00 | Jonathan Sorbo v Mark Oljaca | 1-6,3-6 |