Stadium: Court 4 Round: 25 Ground: Hardcourt outdoor
| ITF Canada F5 | 2018/07/06 19:40 | Volfson, David v Griffith, William | 6-7,6-2,3-6 |
| ITF Canada F5 | 2018/07/05 18:20 | Halebian, Alexios v Volfson, David | 4-6,6-7 |
| ITF Canada F5 | 2018/07/03 16:00 | Baadi, Taha v Volfson, David | 5-7,0-6 |
| ITF USA F16 | 2018/06/19 17:00 | Volfson, David v Godamanna, Harshana | 7-6,4-6,2-6 |
| ITF USA F14 | 2018/06/14 16:00 | Volfson, David v Baughman, Deiton | 6-2,3-6,6-7 |
| ITF USA F14 | 2018/06/12 21:00 | Fugate, Marcus v Volfson, David | 6-7,3-6 |
| ITF USA F5 | 2018/01/23 16:40 | Volfson, David v Pla Malfeito, Jaume | 3-6,4-6 |
| ITF USA F5 | 2018/01/22 15:00 | Trombetta, Ty v Volfson, David | 1-6,6-3,3-6 |
| Challenger Winnipeg Qual | 2018/07/09 16:40 | Yunseong Chung v Lin, Jack Mingjie | 6-2,6-2 |
| Challenger Winnipeg Qual | 2018/07/08 21:50 | Yunseong Chung v Yshai Oliel | 6-3,6-1 |
| ITF Korea F3 | 2018/06/24 05:00 | Yunseong Chung v Nam, Ji Sung | 6-1,6-3 |
| ITF Korea F3 | 2018/06/23 02:00 | Soonwoo Kwon v Yunseong Chung | 4-6,4-6 |
| ITF Korea F3 | 2018/06/22 03:00 | Yunseong Chung v Kwon, OH-Hee | 6-4,6-1 |
| ITF Korea F3 | 2018/06/20 02:30 | Yunseong Chung v Song, Min-Kyu | 7-6,7-6 |
| ITF Korea F3 | 2018/06/19 06:00 | Yunseong Chung v Moon, Ju-Hae | 6-3,4-6,7-5 |
| ITF Korea F2 | 2018/06/17 04:00 | Nam, Ji Sung v Yunseong Chung | 4-6,3-6 |