Stadium: Cancha Siete Leguas Round: 54 Ground: Hardcourt outdoor
| Challenger Leon Qual | 2018/04/22 16:00 | Mantilla, Felipe v Simon, Tobias | 5-7,3-6 |
| Challenger Guadalajara Qual | 2018/04/14 20:30 | Mantilla, Felipe v Simon, Tobias | 7-5,7-6 |
| Challenger Puerto Vallarta Qual | 2018/04/29 16:00 | Simon, Tobias v Endara, Ivan | 6-1,6-4 |
| Challenger Puerto Vallarta Qual | 2018/04/28 16:00 | Simon, Tobias v Batalla Diez, Juan Ignacio | 6-4,6-4 |
| Challenger Leon | 2018/04/24 19:20 | Simon, Tobias v Christopher Eubanks | 6-7,6-7 |
| Challenger Leon Qual | 2018/04/23 16:00 | Rubin Statham v Simon, Tobias | 7-6,6-3 |
| Challenger Leon Qual | 2018/04/22 16:00 | Mantilla, Felipe v Simon, Tobias | 5-7,3-6 |
| Challenger Leon Qual | 2018/04/21 17:00 | Federico Zeballos v Simon, Tobias | 4-6,6-4,3-6 |
| Challenger Guadalajara Qual | 2018/04/14 20:30 | Mantilla, Felipe v Simon, Tobias | 7-5,7-6 |
| ITF Tunisia F13 | 2018/04/04 10:30 | Clement Tabur v Simon, Tobias | View |
| Challenger Puerto Vallarta Qual | 2018/04/29 17:40 | Hach Verdugo, Hans v Mantilla, Felipe | 6-2,1-6,5-7 |
| Challenger Puerto Vallarta Qual | 2018/04/28 21:00 | Ruiz-Rosales, Antonio v Mantilla, Felipe | 2-6,4-6 |
| Challenger Leon Qual | 2018/04/22 16:00 | Mantilla, Felipe v Simon, Tobias | 5-7,3-6 |
| Challenger Leon Qual | 2018/04/21 16:55 | Mantilla, Felipe v Echazu, Mauricio | 6-3,7-5 |
| Challenger Guadalajara Qual | 2018/04/15 17:40 | Gonzalez, Alejandro v Mantilla, Felipe | 7-6,7-6 |
| Challenger Guadalajara Qual | 2018/04/14 20:30 | Mantilla, Felipe v Simon, Tobias | 7-5,7-6 |
| Challenger Mexico City Qual | 2018/04/08 20:00 | Mantilla, Felipe v Londero, Juan Ignacio | 4-6,3-6 |
| Challenger Mexico City Qual | 2018/04/07 21:20 | Mantilla, Felipe v Emilio Gomez | 6-7,6-0,6-3 |