Stadium: Court 10 Round: 27 Ground: Clay
| ITF Australia F5 | 2018/09/20 00:00 | Grills, Jacob v Cavrak, Ken | 6-2,6-1 |
| ITF Australia F5 | 2018/09/18 03:35 | Grills, Jacob v Christian Langmo | 6-0,6-3 |
| Vancouver, Canada | 2018/08/12 20:55 | Daniel Evans v Grills, Jacob | 4-6,6-0,6-3 |
| Vancouver, Canada | 2018/08/11 18:20 | Roelofse, Ruan v Grills, Jacob | 1-6,2-6 |
| Challenger Aptos | 2018/08/04 16:00 | Craig, Henry v Grills, Jacob | 6-2,2-6,6-1 |
| ATP Los Cabos Qual | 2018/07/28 23:00 | Grills, Jacob v Aleksandar Vukic | 6-3,2-6,3-6 |
| Challenger Granby | 2018/07/24 17:05 | Grills, Jacob v Stefano Napolitano | 1-6,6-7 |
| Challenger Granby Qual | 2018/07/23 16:00 | Lucas Miedler v Grills, Jacob | 2-6,6-2,7-6 |
| ITF Australia F5 | 2018/09/20 00:00 | Boyer, Dusty H v Look, Michael | 6-4,4-6,6-2 |
| ITF Australia F5 | 2018/09/19 00:00 | Boyer, Dusty H v Dawes, Glen | 6-3,6-3 |
| ITF USA F19 | 2018/07/05 14:00 | Evgeny Karlovskiy v Boyer, Dusty H | 6-3,6-2 |
| ITF USA F19 | 2018/07/04 13:30 | Boyer, Dusty H v Boyer, Toby D | 7-6,6-3 |
| ITF USA F17 | 2018/06/27 15:00 | Scholtz, Nicolaas v Boyer, Dusty H | 6-3,6-2 |
| ITF USA F17 Qual | 2018/06/25 17:00 | Boyer, Dusty H v Boyer, Toby D | 6-1,6-3 |
| ITF USA F17 Qual | 2018/06/24 18:30 | Boyer, Dusty H v Rollins, Pierce | 6-4,6-4 |
| ITF USA F15 Qual | 2018/06/18 16:10 | Boyer, Dusty H v Lebedev, Alexander | 1-6,5-7 |