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