Ground: Hardcourt outdoor
| ITF Mexico F6 | 2015/06/06 14:00 | Oscar Matias Leiva Biason v John Lamble | 1-6,0-6 |
| ITF USA F15 Qual | 2015/05/04 14:00 | Junior Alexander Ore v John Lamble | 7-5,6-1 |
| ITF USA F15 Qual | 2015/05/02 15:30 | Luis Britto v John Lamble | 4-6,6-4,3-6 |
| ITF USA F14 | 2015/04/26 13:00 | Juan Rocha v John Lamble | 6-4,7-5 |
| ITF USA F14 | 2015/04/25 15:00 | Pedro Gabriel Rodrigues v John Lamble | 5-7,1-6 |
| ITF USA F13 | 2015/04/16 14:00 | John Lamble v Giovanni Lapentti | 7-6,3-6,4-6 |
| ITF USA F13 Qual | 2015/04/14 15:30 | Kevin Kylar v John Lamble | 2-6,5-7 |
| ITF USA F12 Qual | 2015/04/06 16:20 | John Lamble v Cesar A Gomez Diaz | 6-0,6-1 |