Round: 62 Ground: Hardcourt outdoor
| ITF Mexico F1 | 2018/05/09 19:15 | Pavel Krainik v John Lamble | 4-6,7-5,6-2 |
| 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 Mexico F1 | 2018/05/05 16:00 | Alejandro Hastings v Osmel Rivera Granja | 2-6,4-6 |
| ITF Mexico F6 | 2017/11/18 16:00 | Alejandro Hastings v Ivar Jose Aramburu Contreras | 2-6,1-6 |