Stadium: Estadio Puerto Vallarta Round: 46 Ground: Hardcourt outdoor
| 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 |
| ITF USA F8 | 2018/03/20 17:00 | Karue Sell v Evan Song | 6-2,6-1 |
| Challenger Puerto Vallarta Qual | 2018/04/28 16:00 | Wilfredo Gonzalez v Mauricio Echazu | 3-6,2-6 |
| Challenger Leon Qual | 2018/04/21 16:55 | Felipe Mantilla v Mauricio Echazu | 6-3,7-5 |
| Challenger Mexico City Qual | 2018/04/08 17:50 | Jose Hernandez-Fernandez v Mauricio Echazu | 6-1,6-2 |
| Challenger Panama City Qual | 2018/03/31 14:30 | Mauricio Echazu v Marco Bortolotti | 6-7,2-6 |
| Challenger San Luis Potosi Qual | 2018/03/26 18:00 | Mauricio Echazu v Gonzalo Escobar | 3-6,2-6 |
| Challenger San Luis Potosi Qual | 2018/03/25 22:20 | Rubin Statham v Mauricio Echazu | 6-7,6-2,6-7 |
| Challenger San Luis Potosi Qual | 2018/03/25 16:00 | JA R-Rodriguez v Mauricio Echazu | 6-7,1-6 |
| Challenger Punta Del Este Qual | 2018/02/24 15:45 | Mauricio Echazu v Roberto Cid Subervi | 3-6,1-6 |