Stadium: Cancha La Aficion Round: 54 Ground: Hardcourt outdoor
| Challenger Puerto Vallarta Qual | 2018/04/29 16:00 | Evan Song v Mauricio Echazu | 4-6,6-1,6-4 |
| Challenger Panama City | 2018/04/03 19:00 | Evan Song v Rogerio Dutra Silva | 3-6,6-4,6-4 |
| Challenger Panama City Qual | 2018/04/01 16:00 | Evan Song v Pavel Krainik | 4-6,7-5,6-2 |
| Challenger Panama City Qual | 2018/03/31 20:45 | Evan Song v Shalva Dzhanashia | 6-3,7-6 |
| Challenger Le Gosier | 2018/03/29 18:00 | Evan Song v Ruben Bemelmans | 4-6,4-6 |
| Challenger Le Gosier | 2018/03/27 23:50 | Evan Song v Brayden Schnur | 7-5,7-6 |
| Challenger Le Gosier Qual | 2018/03/26 16:30 | Evan Song v Jonathan Eysseric | 6-4,7-5 |
| Challenger Le Gosier Qual | 2018/03/25 19:40 | Evan Song v Valentin Sansonetti | 6-0,6-0 |
| Challenger Puerto Vallarta Qual | 2018/04/29 16:00 | Boris Arias v Christopher Diaz-Figueroa | 1-6,6-7 |
| Challenger Puerto Vallarta Qual | 2018/04/28 17:50 | Ricardo Ortiz v Christopher Diaz-Figueroa | 1-6,2-6 |
| Challenger Leon Qual | 2018/04/22 16:00 | Christopher Diaz-Figueroa v Viktor Durasovic | 4-6,3-6 |
| Challenger Leon Qual | 2018/04/21 15:00 | Christopher Diaz-Figueroa v Jorge Panta | 6-3,7-5 |
| Davis Kupa | 2018/04/07 19:50 | Christopher Diaz-Figueroa v Alberto E Alvarado Larin | 6-3,6-4 |
| ITF Egypt F9 | 2018/03/13 08:00 | Raphael Baltensperger v Christopher Diaz-Figueroa | 5-7,2-6 |
| ITF Egypt F8 | 2018/03/06 08:00 | Lukas Klein v Christopher Diaz-Figueroa | 5-7,6-3,6-3 |
| ITF Egypt F7 | 2018/02/27 08:00 | Christopher Diaz-Figueroa v Rudolf Molleker | 6-3,5-7,4-6 |