| ITF Ireland F1 Qual | 2017/07/16 10:00 | Sean Hodkin v Sean Collins | 6-3,4-6,6-1 |
| ITF Ireland F1 | 2017/07/20 15:00 | Remi Boutillier v Osgar O'Hoisin | 7-6,7-5 |
| ITF Ireland F1 | 2017/07/18 10:40 | Osgar O'Hoisin v Alexander Jhun | 4-6,6-2,6-3 |
| ITF Greece F10 Qual | 2015/11/02 07:30 | Miljan Zekic v Osgar O'Hoisin | 6-3,6-2 |
| ITF Greece F10 Qual | 2015/10/31 07:30 | Osgar O'Hoisin v Milan Drinic | 7-6,6-7,6-3 |
| ITF Greece F9 Qual | 2015/10/26 13:00 | Osgar O'Hoisin v Kevin Kralj | 0-6,2-6 |
| ITF Greece F9 Qual | 2015/10/24 09:30 | Osgar O'Hoisin v Anze Loviscek | 7-5,6-2 |
| ITF Greece F8 | 2015/10/17 08:30 | Osgar O'Hoisin v Masayoshi Ono | 3-6,3-6 |
| ITF Greece F7 | 2015/10/14 07:00 | Theo Fournerie v Osgar O'Hoisin | 6-3,6-4 |