Stadium: Court 2 Round: 25 Ground: Hardcourt indoor
| ITF Canada F2 Qual | 2018/03/05 14:30 | Frederik Nielsen v Ricardo Rodriguez-Pace | 3-6,6-3,6-4 |
| ITF Canada F2 Qual | 2018/03/04 15:00 | Frederik Nielsen v Luis David Martinez | 6-3,6-4 |
| ITF Canada F1 | 2018/02/27 16:00 | Deiton Baughman v Frederik Nielsen | 6-3,6-3 |
| ITF Great Britain F3 | 2018/02/14 13:40 | Ronnie Schneider v Frederik Nielsen | 6-2,6-4 |
| ITF Great Britain F3 | 2018/02/13 14:55 | Frederik Nielsen v Yannick Jankovits | 6-2,3-6,6-3 |
| ITF Great Britain F2 | 2018/02/09 10:00 | Frederik Nielsen v Maximilian Neuchrist | 2-6,3-6 |
| ITF Great Britain F2 | 2018/02/08 11:30 | Neil Pauffley v Frederik Nielsen | 4-6,5-7 |
| ITF Great Britain F2 | 2018/02/07 10:00 | Frederik Nielsen v Nicholas S. Hu | 3-6,6-4,7-6 |
| ITF Canada F1 | 2018/03/02 00:25 | Samuel Monette v Jared Hiltzik | 6-1,7-5 |
| ITF Canada F1 | 2018/02/27 16:00 | Bernardo Saraiva v Jared Hiltzik | 0-6,2-6 |
| Challenger San Francisco | 2018/02/09 00:00 | Noah Rubin v Jared Hiltzik | 6-1,6-4 |
| Challenger San Francisco | 2018/02/07 04:50 | Jared Hiltzik v Kaichi Uchida | 7-6,4-6,6-3 |
| Challenger San Francisco Qual | 2018/02/05 22:40 | Jared Hiltzik v Alessandro-D Ventre | 6-2,6-4 |
| Challenger San Francisco Qual | 2018/02/04 21:00 | Jared Hiltzik v Matthew Kandath | 6-4,6-4 |
| Challenger Dallas | 2018/01/31 16:30 | Jared Hiltzik v Jason Jung | 6-4,1-6,4-6 |
| Challenger Dallas | 2018/01/30 16:30 | Brayden Schnur v Jared Hiltzik | 7-5,2-6,6-7 |