Round: 62 Ground: Hardcourt outdoor
| ITF USA F37 | 2017/11/15 17:55 | Sam Riffice v Alberto Barroso Campos | 4-6,3-6 |
| ITF USA F36 | 2017/11/08 14:00 | Sam Riffice v Felipe Mantilla | 3-6,4-6 |
| ITF USA F32 | 2017/09/28 19:25 | Sam Riffice v Benjamin Lock | 6-7,6-3,6-7 |
| ITF USA F31 | 2017/09/21 22:10 | Henry Craig v Sam Riffice | 6-3,6-2 |
| ITF USA F31 | 2017/09/20 19:45 | Sam Riffice v Evan Song | 6-3,6-4 |
| ITF USA F25 | 2017/07/26 14:00 | Dennis Nevolo v Sam Riffice | 6-3,6-3 |
| ITF USA F25 | 2017/07/24 17:15 | Sam Riffice v Hunter Callahan | 7-5,6-3 |
| ITF Germany F5 | 2017/06/27 11:55 | Nicola Kuhn v Sam Riffice | 6-2,6-2 |
| ITF USA F26 Qual | 2016/07/30 14:00 | Alexander Gornet v Austin Williams | 6-1,6-3 |
| ITF USA F23 Qual | 2014/08/03 15:00 | Michael Riechmann v Austin Williams | 6-1,6-1 |
| ITF USA F21 Qual | 2014/07/18 14:30 | Arnav Mohanty v Austin Williams | 6-0,6-4 |
| ITF USA F17 Qual | 2014/06/22 14:00 | Austin Williams v William Little | 0-6,1-6 |