Round: 44 Ground: Hardcourt indoor
| ITF Uzbekistan F4 | 2015/06/10 06:25 | Temur Ismailov v Dean O'Brien | 6-2,6-1 |
| ITF Uzbekistan F4 | 2015/06/09 07:40 | Dean O'Brien v Pavel Tsoy | 6-3,6-4 |
| 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 Finland F3 | 2015/08/18 09:30 | Herkko Pollanen v Gonzalo Lama | 0-6,1-6 |
| ITF Finland F2 Qual | 2015/08/08 13:00 | Herkko Pollanen v Casper Ruud | 1-6,2-6 |
| ITF Finland F1 | 2015/08/04 11:50 | Herkko Pollanen v Harri Heliovaara | 1-6,6-2,5-7 |
| ITF Estonia F1 | 2015/07/28 11:40 | Mikelis Libietis v Herkko Pollanen | 6-4,6-0 |
| ITF Estonia F1 | 2015/07/26 12:00 | Herkko Pollanen v Marcus Mansson | 6-3,6-3 |
| ITF Estonia F1 | 2015/07/26 07:00 | Herkko Pollanen v Mika Kosonen | 6-2,6-4 |
| ITF USA F20 | 2015/06/30 16:15 | Herkko Pollanen v Dmytro Kamynin | 6-7,1-6 |
| ITF USA F18 | 2015/06/23 22:00 | Emilio Gomez v Herkko Pollanen | 6-4,6-3 |