Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| Challenger Winnetka Qual | 2018/07/07 15:00 | Vasil Kirkov v Emil Reinberg | 5-7,2-6 |
| ITF Canada F5 | 2018/07/04 22:00 | Alexis Galarneau v Vasil Kirkov | 6-3,5-7,7-5 |
| ITF Canada F4 | 2018/06/26 17:00 | Justin Boulais v Vasil Kirkov | 6-4,6-4 |
| ITF Canada F3 | 2018/06/21 16:00 | Ricardo Rodriguez-Pace v Vasil Kirkov | 6-4,6-3 |
| ITF Canada F3 | 2018/06/19 16:00 | Justin Boulais v Vasil Kirkov | 6-2,3-6,4-6 |
| ITF Tunisia F21 | 2018/06/03 09:00 | Moez Echargui v Vasil Kirkov | 6-4,6-3 |
| ITF Tunisia F21 | 2018/06/02 09:00 | Gabriel Petit v Vasil Kirkov | 1-6,2-6 |
| ITF Tunisia F21 | 2018/06/01 08:55 | Calin Manda v Vasil Kirkov | 6-2,6-7,0-6 |
| ITF Chinese Taipei F1 | 2018/07/17 02:00 | Cing-Yang Meng v Michael Zhu | 0-6,3-6 |
| ITF China F10 | 2018/07/12 03:00 | Tung-Lin Wu v Michael Zhu | 6-2,7-5 |
| ITF China F10 | 2018/07/10 02:00 | Michael Zhu v Zhe Zhou | 6-0,6-3 |
| ITF Hong Kong F2 | 2018/07/02 02:00 | Michael Zhu v Anthony Jackie Tang | 2-6,3-6 |
| ITF Hong Kong F1 | 2018/06/27 03:40 | Michael Zhu v Hong Kit Wong | 6-4,2-6,3-6 |
| ITF Hong Kong F1 | 2018/06/26 03:40 | Nicholas S. Hu v Michael Zhu | 4-6,3-6 |
| ITF Korea F3 | 2018/06/18 01:00 | Min-Kyu Song v Michael Zhu | 6-4,6-2 |
| ITF Korea F2 | 2018/06/14 01:00 | Cheong-Eui Kim v Michael Zhu | 6-1,6-2 |