Round: 25 Ground: Hardcourt indoor
| Columbus, USA, Qualifications | 2015/09/20 16:10 | O'Brien, Dean v Pollanen, Herkko | 6-3,6-4 |
| ITF Uzbekistan F4 | 2015/06/10 06:25 | Ismailov, Temur v O'Brien, Dean | 6-2,6-1 |
| ITF Uzbekistan F4 | 2015/06/09 07:40 | O'Brien, Dean v Tsoy, Pavel | 6-3,6-4 |
| Challenger Drummondville Qual | 2015/03/16 15:45 | El Midhawy, Adam v O'Brien, Dean | 6-3,6-2 |
| ITF Canada F2 Qual | 2015/03/08 18:00 | O'Brien, Dean v Krustev, Victor | 2-6,7-6,4-6 |
| ITF Canada F1 | 2015/03/04 16:20 | O'Brien, Dean v Veger, Filip | 2-6,2-6 |
| ITF USA F28 | 2014/10/15 18:30 | El Midhawy, Adam v O'Brien, Dean | 6-3,7-6 |
| ITF Colombia F5 | 2014/09/11 15:00 | O'Brien, Dean v de Paula, Fabiano | 4-6,3-6 |
| ITF Canada F9 Qual | 2015/09/14 19:45 | Sarmiento, Raymond v Bangoura, Sekou | 3-6,6-2,6-2 |
| ITF Canada F9 Qual | 2015/09/09 18:00 | Reinwein, Sami v Bangoura, Sekou | 6-2,1-6,1-6 |
| ITF Canada F9 Qual | 2015/09/08 15:30 | Daciek, Patrick v Bangoura, Sekou | 2-6,6-3,1-6 |
| ATP Washington Qual | 2015/08/01 15:50 | Bangoura, Sekou v Niki, Takuto | 3-6,7-6,6-7 |
| ITF USA F18 | 2015/06/28 20:00 | Emilio Gomez v Bangoura, Sekou | 7-6,6-4 |
| ITF USA F18 | 2015/06/28 15:30 | Cotrone, Dominic v Bangoura, Sekou | 2-6,7-6,3-6 |
| ITF USA F18 | 2015/06/26 20:55 | Lin, Winston v Bangoura, Sekou | 2-6,4-6 |
| ITF USA F18 | 2015/06/25 16:00 | Arconada, Jordi v Bangoura, Sekou | 0-6,6-7 |