Stadium: Court 5 Round: 25 Ground: Hardcourt outdoor
| ITF - M15 Monastir | 2020/12/14 09:30 | Osgar O'Hoisin v Jack Gibbens | 6-4,6-3 |
| ITF - M15 Monastir | 2020/12/13 13:30 | Mikalai Haliak v Osgar O'Hoisin | 2-6,3-6 |
| ITF - M15 Monastir | 2020/12/06 08:00 | Cesar Bourgois v Osgar O'Hoisin | 5-7,6-4,11-9 |
| ITF - M15 Monastir | 2020/11/29 10:30 | Adrian Oetzbach v Osgar O'Hoisin | 1-6,6-1,10-8 |
| ITF M15 - Quinta Do Lago | 2020/11/02 10:00 | David Volfson v Osgar O'Hoisin | 6-1,6-3 |
| ITF M25 - Vale Do Lobo | 2020/10/25 10:00 | Osgar O'Hoisin v Goncalo Falcao | 2-6,3-6 |
| ITF M15 - Cancun | 2020/03/08 14:30 | Noah Berry v Osgar O'Hoisin | 6-4,6-2 |
| ITF M15 - Cancun | 2020/02/18 15:00 | Osgar O'Hoisin v Felipe M Sarrasague | 4-6,4-6 |
| ITF - M15 Monastir | 2020/12/09 12:10 | Luca Potenza v Alexander Erler | 7-6,5-7,6-1 |
| ITF - M15 Sharm-el-Sheikh | 2020/11/11 10:40 | Alexander Erler v Arnaud Bovy | 1-6,4-6 |
| ITF M15 - Pärnu | 2020/11/04 09:25 | Kristjan Tamm v Alexander Erler | 7-6,4-6,7-6 |
| ATP - Wenen | 2020/10/24 13:50 | Alexander Erler v Vasek Pospisil | 6-3,3-6,2-6 |
| ITF - M15 Forbach | 2020/10/03 12:30 | Antoine Cornut-Chauvinc v Alexander Erler | 7-5,6-4 |
| ITF - M15 Forbach | 2020/10/02 13:00 | Antoine Bellier v Alexander Erler | 3-6,3-6 |
| ITF - M15 Forbach | 2020/10/01 09:55 | Hugo Schott v Alexander Erler | 4-6,5-7 |
| ITF - M15 Forbach | 2020/09/30 08:30 | Kai Lemstra v Alexander Erler | 3-6,2-6 |