Stadium: Court 3 Round: 25 Ground: Hardcourt outdoor
| ITF Egypt F7 | 2018/02/28 10:30 | Louis Wessels v Eduardo Struvay | 4-6,6-0,5-7 |
| ITF USA F6 | 2018/01/31 18:00 | Louis Wessels v Filip Bergevi | 4-6,1-6 |
| ITF USA F5 | 2018/01/23 15:00 | Pedro Sakamoto v Louis Wessels | 6-4,7-6 |
| ITF USA F4 | 2018/01/18 16:55 | Fred Gil v Louis Wessels | 6-4,6-1 |
| ITF USA F4 | 2018/01/17 15:00 | Juan Manuel Benitez Chavarriaga v Louis Wessels | 1-6,4-6 |
| ITF USA F3 | 2018/01/14 17:00 | Javier Marti v Louis Wessels | 6-4,6-0 |
| ITF USA F3 | 2018/01/13 16:00 | Fred Gil v Louis Wessels | 4-6,5-7 |
| ITF USA F3 | 2018/01/12 16:00 | Louis Wessels v Raleigh Smith | 6-3,6-7,7-6 |
| Challenger San Francisco Qual | 2018/02/04 21:00 | Guillermo Olaso v Jack Molloy | 7-5,6-2 |
| Challenger San Francisco Qual | 2018/02/03 21:55 | Guillermo Olaso v Jacob Brumm | 6-3,6-1 |
| Challenger Dallas Qual | 2018/01/29 18:15 | Evgeny Karlovskiy v Guillermo Olaso | 6-7,6-1,7-6 |
| Challenger Dallas Qual | 2018/01/28 16:00 | Guillermo Olaso v Patricio Heras | 6-0,6-4 |
| Challenger Dallas Qual | 2018/01/27 17:20 | Arnau Dachs v Guillermo Olaso | 3-6,4-6 |
| Challenger Newport Beach | 2018/01/23 21:25 | Taylor Fritz v Guillermo Olaso | 6-3,6-4 |
| Challenger Newport Beach Qual | 2018/01/22 18:00 | Guillermo Olaso v JC Aragone | 6-3,2-6,7-6 |
| Challenger Newport Beach Qual | 2018/01/21 20:25 | Brayden Schnur v Guillermo Olaso | 6-4,4-6,4-6 |