Stadium: Court 3 Round: 45 Ground: Hardcourt outdoor
| Challenger Monterrey | 2018/10/04 00:35 | Ivo Karlovic v Lucas Gomez | 3-6,6-3,7-6 |
| Challenger Monterrey | 2018/10/01 21:25 | Stefan Kozlov v Lucas Gomez | 2-6,4-6 |
| ITF USA F26 | 2018/09/28 18:55 | Michael Shabaz v Lucas Gomez | 6-1,6-3 |
| ITF USA F26 | 2018/09/27 20:20 | Govind Nanda v Lucas Gomez | 4-6,6-3,3-6 |
| ITF USA F26 | 2018/09/26 17:00 | Conor Berg v Lucas Gomez | 6-4,6-7,1-6 |
| Davis Cup | 2018/09/15 15:55 | Martin Cuevas v Lucas Gomez | 6-4,6-3 |
| ITF Switzerland F5 | 2018/09/05 10:00 | Louis Wessels v Lucas Gomez | 6-2,3-6,6-4 |
| ITF Switzerland F5 | 2018/09/03 12:00 | Raphael Baltensperger v Lucas Gomez | 6-1,2-6,2-6 |
| Challenger Calgary | 2018/10/15 20:05 | Enzo Couacaud v Roberto Ortega-Olmedo | 6-2,4-6,6-3 |
| Challenger Fairfield | 2018/10/06 22:15 | Frederik Nielsen v Roberto Ortega-Olmedo | 6-2,6-2 |
| Challenger Stockton | 2018/09/29 17:00 | Roberto Ortega-Olmedo v Marcos Giron | 4-6,4-6 |
| Challenger Tiburon | 2018/09/25 21:55 | Ernesto Escobedo v Roberto Ortega-Olmedo | 6-1,7-6 |
| Challenger Tiburon | 2018/09/24 17:00 | Jan Choinski v Roberto Ortega-Olmedo | 6-7,3-6 |
| Challenger Tiburon | 2018/09/23 17:00 | Marcos Giron v Roberto Ortega-Olmedo | 3-6,6-1,5-7 |
| Challenger Tiburon | 2018/09/22 17:00 | Sebastian Fanselow v Roberto Ortega-Olmedo | 1-6,2-6 |
| Challenger Columbus | 2018/09/17 16:35 | Alexei Popyrin v Roberto Ortega-Olmedo | 4-6,7-6,7-5 |