| Challenger Drummondville Qual | 2015/03/16 15:45 | Adam El Mihdawy v Dean O'Brien | 6-3,6-2 |
| ITF Canada F2 Qual | 2015/03/08 18:00 | Dean O'Brien v Victor Krustev | 2-6,7-6,4-6 |
| ITF Canada F1 | 2015/03/04 16:20 | Dean O'Brien v Filip Veger | 2-6,2-6 |
| ITF USA F28 | 2014/10/15 18:30 | Adam El Mihdawy v Dean O'Brien | 6-3,7-6 |
| ITF Colombia F5 | 2014/09/11 15:00 | Dean O'Brien v Fabiano De Paula | 4-6,3-6 |
| ITF Colombia F5 | 2014/09/10 16:35 | Dean O'Brien v Pedro Bernardi | 7-6,6-4 |
| ITF Colombia F4 | 2014/08/25 16:00 | Dean O'Brien v Fabiano De Paula | 6-7,3-6 |
| ITF France F11 | 2014/06/18 08:00 | Nils Langer v Dean O'Brien | 6-4,6-2 |
| ITF Kazakhstan F4 | 2015/04/29 04:30 | Olexiy Kolisnyk v Pavel Tsoy | 6-1,6-3 |
| ITF Kazakhstan F4 Qual | 2015/04/27 04:00 | Alexey Prokopchuk v Pavel Tsoy | 1-6,4-6 |
| ITF Kazakhstan F8 | 2014/07/02 09:00 | Pavel Tsoy v Daniiar Duldaev | 5-7,2-6 |
| ITF Kazakhstan F8 | 2014/07/01 09:45 | Pavel Tsoy v Sagadat Ayap | 6-3,6-3 |
| ITF Kazakhstan F8 | 2014/06/29 07:45 | Nikita Matveyko v Pavel Tsoy | 1-6,6-4,6-7 |