Stadium: Stadium Round: 26 Ground: Hardcourt outdoor
| ITF Mexico F1 | 2018/05/08 20:00 | Pavel Krainik v Trey Hilderbrand | 4-6,6-3,6-4 |
| Challenger Puerto Vallarta Qual | 2018/04/28 22:50 | Jorge Panta v Pavel Krainik | 4-6,6-4,6-0 |
| Challenger Leon Qual | 2018/04/21 19:00 | Rubin Statham v Pavel Krainik | 6-4,6-3 |
| 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 21:15 | Hans Hach Verdugo v Pavel Krainik | 6-4,2-6,3-6 |
| Challenger Panama City Qual | 2018/03/31 17:05 | Pavel Krainik v Nathan Pasha | 6-3,2-6,7-6 |
| Challenger San Luis Potosi Qual | 2018/03/25 18:00 | Pavel Krainik v Marco Bortolotti | 1-6,2-6 |
| Challenger Drummondville | 2018/03/13 14:00 | Pavel Krainik v Dominik Koepfer | 6-3,5-7,2-6 |
| ITF Mexico F1 | 2018/05/08 19:40 | Alejandro H Franco v John Lamble | 0-6,6-2,2-6 |
| ITF USA F12 | 2018/04/24 16:30 | Alejandro Tabilo v John Lamble | 7-6,6-4 |
| ITF USA F11 | 2018/04/17 14:00 | John Lamble v Adam El Mihdawy | 6-7,1-6 |
| ITF USA F10 Qual | 2018/04/08 16:00 | John Lamble v Michael Shabaz | 3-6,4-6 |
| ITF USA F8 Qual | 2018/03/17 17:00 | Sekou Bangoura v John Lamble | 5-7,6-0,6-1 |
| ITF Tunisia F8 | 2018/02/25 08:30 | John Lamble v Arthur Reymond | 2-6,6-4,2-6 |
| ITF Tunisia F7 | 2018/02/20 14:55 | Gianluca Mager v John Lamble | 6-3,6-4 |
| ITF Tunisia F7 | 2018/02/19 09:00 | John Lamble v Scott Duncan | 7-6,2-6,6-1 |