Stadium: Court 7 Round: 44 Ground: Hardcourt outdoor
| ITF M15 Cancun | 2020/02/02 15:00 | Volfson, David v Spencer, Paul | 6-0,6-1 |
| ITF M15 Cancun | 2020/01/29 19:10 | Brandon Walkin v Volfson, David | 6-4,6-3 |
| ITF M15 Cancun | 2019/12/11 19:00 | Volfson, David v Martinez Sarrasague, Felipe | 5-7,6-4,3-6 |
| ITF M15 Cancun | 2019/12/05 18:15 | Volfson, David v Fernando Yamacita | 6-4,4-6,6-4 |
| ITF M15 Cancun | 2019/12/03 14:10 | Volfson, David v Donarski, Sid | 6-3,6-4 |
| ITF M15 Cancun | 2019/11/20 19:45 | Volfson, David v Brymer, Gage | 6-3,5-7,3-6 |
| ITF M15 Cancun | 2019/11/17 13:45 | Volfson, David v Paul Jubb | 0-6,3-6 |
| ITF M15 Cancun | 2019/11/16 16:20 | Zhurbin, Alexander v Volfson, David | 1-6,7-5,3-6 |
| ITF M15 Cancun | 2020/02/02 15:00 | Banzer, Rodrigo v Osgar O'Hoisin | 5-7,3-6 |
| ITF M15 Cancun | 2020/01/27 15:30 | Osgar O'Hoisin v Spec, Matic | 4-6,7-6,4-10 |
| ITF M15 Cancun | 2020/01/26 19:00 | Osgar O'Hoisin v Sysoev, Nikolay | 6-0,6-1 |
| ITF M15 Cancun | 2020/01/19 17:30 | Osgar O'Hoisin v Jesse Flores | 7-6,0-6,6-10 |
| ITF M15 Champaign | 2019/09/09 17:00 | Osgar O'Hoisin v Yamada, Kento | 2-6,1-6 |
| ITF M15 Champaign | 2019/09/08 17:30 | Osgar O'Hoisin v Pare, Francis | 6-1,6-2 |
| Dublin, Singles Qualifying M-ITF-IRL-01A | 2019/07/31 10:05 | Watson, Andrew v Osgar O'Hoisin | 7-5,6-4 |
| ITF Portugal F16 | 2018/08/21 13:20 | Osgar O'Hoisin v Finn Bass | 2-6,3-6 |