Stadium: Court 6 Round: 54
| Challenger Newport Beach Qual | 2018/01/21 20:25 | Brayden Schnur v Guillermo Olaso | 6-4,4-6,4-6 |
| Challenger Newport Beach Qual | 2018/01/20 22:05 | Ante Pavic v Guillermo Olaso | 3-6,3-6 |
| Challenger Bangkok | 2018/01/09 03:00 | Guillermo Olaso v Pedro Martinez | 4-6,4-6 |
| ITF USA F1 | 2018/01/04 20:40 | Guillermo Olaso v Christopher Eubanks | 1-6,3-6 |
| ITF USA F1 | 2018/01/02 19:35 | Brandon Nakashima v Guillermo Olaso | 2-6,6-7 |
| ITF Tunisia F32 | 2017/10/29 08:30 | Guillermo Olaso v Alexandre Muller | 6-4,3-6,3-6 |
| ITF Tunisia F32 | 2017/10/28 10:40 | Guillermo Olaso v Elliot Benchetrit | 6-4,7-5 |
| ITF Tunisia F32 | 2017/10/27 10:00 | Joao Monteiro v Guillermo Olaso | 2-6,4-6 |
| Challenger Newport Beach Qual | 2018/01/21 22:10 | JC Aragone v Luke Bambridge | 6-1,7-6 |
| Challenger Newport Beach Qual | 2018/01/20 20:55 | Dominik Koepfer v JC Aragone | 6-2,1-6,6-7 |
| ITF USA F2 | 2018/01/13 20:20 | Emilio Gomez v JC Aragone | 6-4,6-3 |
| ITF USA F2 | 2018/01/12 20:30 | Jan Satral v JC Aragone | 4-6,6-3,4-6 |
| ITF USA F2 | 2018/01/11 21:05 | Logan Smith v JC Aragone | 2-6,4-6 |
| ITF USA F2 | 2018/01/10 21:50 | Jack Jaede v JC Aragone | 2-6,6-2,6-7 |
| ITF USA F1 | 2018/01/02 19:50 | Alexander Sarkissian v JC Aragone | 3-6,7-5,6-1 |
| Challenger Charlottesville | 2017/10/31 21:30 | Denis Kudla v JC Aragone | 6-2,6-3 |