Stadium: Court Central Round: 25 Ground: Hardcourt outdoor
| Challenger Gatineau | 2018/07/19 15:00 | Peter Polansky v Pavel Krainik | 6-2,7-5 |
| Challenger Gatineau | 2018/07/18 01:30 | Pavel Krainik v Samuel Monette | 4-6,6-4,6-4 |
| Challenger Winnipeg | 2018/07/11 23:35 | Peter Polansky v Pavel Krainik | 7-6,7-6 |
| ITF USA F18 | 2018/06/27 19:35 | Pavel Krainik v Charles Broom | 4-6,3-6 |
| ITF USA F16 | 2018/06/20 18:45 | Cannon Kingsley v Pavel Krainik | 6-7,6-2,6-2 |
| ITF USA F14 | 2018/06/15 16:00 | Lucas Gomez v Pavel Krainik | 7-5,4-6,7-5 |
| ITF USA F14 | 2018/06/14 16:00 | Maksim Tikhomirov v Pavel Krainik | 3-6,7-6,6-7 |
| ITF USA F14 | 2018/06/13 17:00 | Eliot Spizzirri v Pavel Krainik | 4-6,6-1,2-6 |
| Challenger Gatineau | 2018/07/17 18:00 | Renta Tokuda v Edan Leshem | 6-4,6-7,6-3 |
| Challenger Winnipeg | 2018/07/11 15:00 | Renta Tokuda v Kaichi Uchida | 5-7,5-7 |
| Challenger Almaty Qual | 2018/06/10 04:30 | Tung-Lin Wu v Renta Tokuda | 6-3,7-6 |
| Challenger Almaty Qual | 2018/06/09 05:35 | Nikola Cacic v Renta Tokuda | 6-7,4-6 |
| Challenger Shymkent Qual | 2018/06/03 05:55 | Mukund Sasikumar v Renta Tokuda | 4-6,6-1,7-5 |
| Challenger Busan Qual | 2018/05/13 02:00 | Luke Saville v Renta Tokuda | 6-2,2-6,6-1 |
| Challenger Busan Qual | 2018/05/12 02:35 | Jacob Grills v Renta Tokuda | 7-6,5-7,3-6 |
| Challenger Gimcheon | 2018/05/11 03:15 | Renta Tokuda v Vasek Pospisil | 4-6,4-6 |