Round: 25 Ground: Hardcourt indoor
| ITF France F18 | 2017/09/09 12:45 | Guez, David v Ugo Humbert | 4-6,2-6 |
| ITF France F18 | 2017/09/08 10:00 | Cem Ilkel v Guez, David | 6-7,2-6 |
| ITF France F18 | 2017/09/07 11:25 | Kanar, Jonathan v Guez, David | 2-6,1-6 |
| ITF France F18 | 2017/09/05 09:10 | Cazaban, Hugo v Guez, David | 0-6,1-6 |
| ITF Portugal F17 | 2017/08/25 09:00 | Gil, Fred v Guez, David | 6-2,6-4 |
| ITF Portugal F17 | 2017/08/24 11:25 | Perez Sanz, David v Guez, David | 5-7,3-6 |
| ITF Portugal F17 | 2017/08/23 12:00 | Carr, Simon v Guez, David | 1-6,1-6 |
| ITF Portugal F16 | 2017/08/19 09:00 | Guez, David v Kanar, Jonathan | 4-6,1-6 |
| ITF France F19 Qual | 2017/09/11 14:20 | Lammons, Nathaniel v Hoeveler, Leon | 6-3,6-2 |
| ITF France F19 Qual | 2017/09/10 13:45 | Lammons, Nathaniel v Eon, Julien | 1-6,7-5,6-4 |
| ITF France F18 | 2017/09/04 09:30 | Evan Furness v Lammons, Nathaniel | 6-7,7-5,6-3 |
| ITF France F18 Qual | 2017/09/03 08:00 | Lammons, Nathaniel v Nathan Seateun | 6-4,6-2 |
| ITF France F18 Qual | 2017/09/02 10:45 | Lammons, Nathaniel v Beccuzzi, Enrico | 6-0,6-0 |
| ITF USA F27 | 2017/08/08 14:30 | Lammons, Nathaniel v Alex Rybakov | 4-6,3-6 |
| ITF USA F26 | 2017/08/01 15:00 | Rodriguez-Pace, Ricardo v Lammons, Nathaniel | 6-3,6-1 |
| ITF Egypt F21 | 2017/07/19 17:00 | Saraiva, Bernardo v Lammons, Nathaniel | 7-6,2-6,6-0 |