Stadium: Court 1 Round: 46
| Challenger Gatineau Qual | 2018/07/14 21:55 | Grills, Jacob v Jumpei Yamasaki | 6-3,6-1 |
| Challenger Winnipeg Qual | 2018/07/08 23:15 | Lin, Jack Mingjie v Grills, Jacob | 6-4,6-0 |
| Challenger Winnipeg Qual | 2018/07/08 20:05 | Nicaise Muamba v Grills, Jacob | 6-7,0-6 |
| ITF Canada F5 | 2018/07/07 18:50 | Grills, Jacob v Griffith, William | 6-2,4-6,4-6 |
| ITF Canada F5 | 2018/07/06 17:00 | Marc-Andrea Huesler v Grills, Jacob | 6-3,0-6,5-7 |
| ITF Canada F5 | 2018/07/05 20:45 | Boulais, Justin v Grills, Jacob | 7-5,1-6,3-6 |
| ITF Canada F5 | 2018/07/03 16:00 | Maginley, J. v Grills, Jacob | 6-7,2-6 |
| ITF Singapore F3 | 2018/05/31 06:15 | Banes, Maverick v Grills, Jacob | 6-1,7-6 |
| Challenger Gatineau Qual | 2018/07/14 21:25 | R Prabodh, Suraj v Makoto Ochi | 2-6,0-6 |
| Challenger Winnipeg Qual | 2018/07/08 21:20 | Makoto Ochi v Patrick Kypson | 5-7,3-6 |
| ITF Hong Kong F1 | 2018/06/25 03:55 | Kazuki Nishiwaki v Makoto Ochi | 7-6,6-2 |
| ITF Japan F8 | 2018/06/12 02:55 | Ryotaro Matsumura v Makoto Ochi | 4-6,6-3,6-1 |
| ITF Japan F7 | 2018/06/09 01:00 | Rio Noguchi v Makoto Ochi | 2-6,6-2,6-4 |
| ITF Japan F7 | 2018/06/08 02:25 | Inoue, Haru v Makoto Ochi | 2-6,5-7 |
| ITF Japan F7 | 2018/06/07 05:25 | Tomohiro Masabayashi v Makoto Ochi | 2-6,2-6 |
| ITF Japan F7 | 2018/06/04 02:30 | Takeshima, Shunrou v Makoto Ochi | 4-6,3-6 |