Stadium: Court 1 Round: 25 Ground: Hardcourt outdoor
| ITF USA F9 | 2018/04/07 15:30 | Scott Griekspoor v Collin Altamirano | 7-6,6-2 |
| ITF USA F9 | 2018/04/07 15:30 | Scott Griekspoor v Collin Altamirano | 7-6,6-2 |
| ITF USA F9 | 2018/04/05 15:00 | Collin Altamirano v Liam Caruana | 6-2,6-4 |
| ITF USA F8 | 2018/03/24 20:30 | JC Aragone v Collin Altamirano | 6-0,6-4 |
| ITF USA F8 | 2018/03/24 01:00 | Collin Altamirano v Laurent Lokoli | 6-2,6-1 |
| ITF USA F8 | 2018/03/23 20:15 | Martin Redlicki v Collin Altamirano | 6-7,7-6,6-7 |
| ITF USA F8 | 2018/03/21 00:05 | Andre Goransson v Collin Altamirano | 2-6,3-6 |
| ITF USA F7 | 2018/03/15 18:55 | Mathias Bourgue v Collin Altamirano | 6-4,6-3 |
| ITF USA F7 | 2018/03/14 18:00 | Collin Altamirano v Antoine Bellier | 6-7,6-1,6-1 |
| ITF USA F9 | 2018/04/08 17:10 | Scott Griekspoor v Sebastian Fanselow | 6-7,6-4,7-5 |
| ITF USA F9 | 2018/04/08 15:00 | Scott Griekspoor v Henry Craig | 7-5,7-5 |
| ITF USA F9 | 2018/04/07 15:30 | Scott Griekspoor v Collin Altamirano | 7-6,6-2 |
| ITF USA F9 | 2018/04/05 15:00 | Scott Griekspoor v Sam Riffice | 6-4,7-6 |
| ITF USA F9 | 2018/04/04 18:10 | Scott Griekspoor v Leonardo Du Plooy | 6-0,6-2 |
| Challenger Lille Qual | 2018/03/19 13:25 | Scott Griekspoor v Gregoire Barrere | 5-7,6-4,3-6 |
| Challenger Lille Qual | 2018/03/18 14:00 | Scott Griekspoor v Gabor Borsos | 6-7,6-1,6-4 |
| Challenger Lille Qual | 2018/03/17 14:55 | Scott Griekspoor v Cyril Vandermeersch | 6-2,6-4 |