Stadium: Court 5 Round: 25 Ground: Clay
| ITF USA F15 Qual | 2018/06/18 13:00 | Riffice, Sam v Pratt, Jared | 6-1,6-2 |
| ITF USA F13 Qual | 2018/06/09 15:30 | Riffice, Sam v Shi, Brian | 5-7,3-6 |
| Challenger Bordeaux Qual | 2018/05/13 10:55 | Maxime Janvier v Riffice, Sam | 7-6,6-0 |
| Challenger Bordeaux Qual | 2018/05/12 11:45 | Duran, Guillermo v Riffice, Sam | 2-6,6-7 |
| Challenger - Savannah | 2018/05/01 14:00 | Riffice, Sam v Marc Polmans | 6-1,4-6,2-6 |
| ITF USA F10 | 2018/04/14 18:55 | Karue Sell v Riffice, Sam | 6-2,4-6,6-1 |
| ITF USA F10 | 2018/04/13 15:00 | Redlicki, Michael v Riffice, Sam | 4-6,4-6 |
| ITF USA F10 | 2018/04/12 18:00 | Riffice, Sam v Monette, Samuel | 6-2,6-3 |
| ITF USA F15 Qual | 2018/06/18 13:00 | Dunbar, Jacob v Hamilton, Grey | 7-6,2-6,6-4 |
| ITF USA F13 Qual | 2018/06/09 15:30 | Aleksandar Kovacevic v Dunbar, Jacob | 6-2,6-3 |
| ITF USA F11 | 2018/04/19 15:00 | Rodriguez-Pace, Ricardo v Dunbar, Jacob | 7-6,6-4 |
| ITF USA F11 | 2018/04/17 23:00 | Zapp, Logan v Dunbar, Jacob | 2-6,6-7 |
| ITF USA F10 | 2018/04/11 15:00 | Dunbar, Jacob v Alexander Ritschard | 2-6,3-6 |
| ITF Canada F1 Qual | 2018/02/25 15:00 | Redlicki, Michael v Dunbar, Jacob | 6-1,6-3 |
| ITF USA F40 | 2017/12/09 16:40 | Dunbar, Jacob v Kaichi Uchida | 3-6,0-6 |
| ITF USA F40 | 2017/12/08 16:30 | Dunbar, Jacob v Nevolo, Dennis | 7-5,7-6 |