Stadium: Court 5 Round: 54 Ground: Hardcourt indoor
| ITF M25 Bakio | 2021/06/30 08:30 | Osgar O'Hoisin v Kaichi Uchida | 3-6,5-7 |
| ITF M25 Bakio | 2021/06/29 08:00 | Marco Brugnerotto v Osgar O'Hoisin | 2-6,6-4,8-10 |
| ITF M25 Bakio | 2021/06/27 15:40 | Antonio Prat v Osgar O'Hoisin | 2-6,2-6 |
| Davis Cup | 2021/06/19 08:00 | Aleksandre Bakshi v Osgar O'Hoisin | 6-4,6-3 |
| Davis Cup | 2021/06/18 09:20 | Osgar O'Hoisin v Liam Delicata | 6-4,6-2 |
| Davis Cup | 2021/06/17 07:50 | Valentin Vacherot v Osgar O'Hoisin | 6-3,6-4 |
| Davis Cup | 2021/06/16 08:00 | Chris Rodesch v Osgar O'Hoisin | 3-6,6-0,6-2 |
| ITF M15 Gaiba | 2021/06/09 14:05 | Cristian Rodriguez v Osgar O'Hoisin | 7-5,6-4 |