Stadium: Court 19 Round: 25 Ground: Clay
| ITF USA F32 | 2018/11/15 15:00 | Sam Riffice v Malik Bhatnagar | 6-1,6-3 |
| ITF USA F32 | 2018/11/10 16:00 | Sam Riffice v Stratton Gilmore | 6-0,6-0 |
| ITF USA F29 | 2018/11/01 22:30 | Filip Cristian Jianu v Sam Riffice | 7-5,4-6,6-3 |
| ITF USA F29 | 2018/10/31 16:30 | Edson David Ortiz Tovar v Sam Riffice | 6-2,4-6,2-6 |
| ITF USA F28 | 2018/10/16 18:10 | Jack Findel-Hawkins v Sam Riffice | 6-4,6-2 |
| Challenger Lexington | 2018/07/30 17:25 | Alexander Ward v Sam Riffice | 6-3,6-1 |
| Challenger Binghamton Qual | 2018/07/22 17:20 | Antoine Escoffier v Sam Riffice | 6-2,6-2 |
| Challenger Binghamton Qual | 2018/07/21 13:00 | Sam Riffice v Alexios Halebian | 6-3,6-7,6-1 |
| ITF USA F32 | 2018/11/11 16:00 | Sacha Modica v Gerardo Irarrazabal | 6-3,7-6 |
| ITF USA F32 | 2018/11/10 16:00 | Julian Bradley v Sacha Modica | 4-6,4-6 |
| ITF Spain F20 Qual | 2018/07/22 09:30 | Sacha Modica v Imanol L Morillo | 2-6,3-6 |
| ITF Spain F20 Qual | 2018/07/21 11:00 | Sacha Modica v Max Alcala Gurri | 6-4,7-5 |
| ITF Tunisia F21 | 2018/05/29 09:00 | Romain Bauvy v Sacha Modica | 6-4,4-6,6-3 |
| ITF Tunisia F21 | 2018/05/27 09:00 | Alex Brenner v Sacha Modica | 2-6,2-6 |
| ITF Tunisia F21 | 2018/05/26 10:00 | Ren Nakamura v Sacha Modica | 3-6,2-6 |
| ITF Tunisia F20 | 2018/05/23 10:55 | Sarp Agabigun v Sacha Modica | 7-5,4-6,7-5 |