Estadio: Court 4 Round: 26 Ground: Hardcourt outdoor
| ITF Italia F3 | 2016/03/17 14:00 | Johannes Haerteis v Alessandro Bega | 2-6,4-6 |
| ITF M25 Oporto | 2020/09/30 08:55 | Naoki Nakagawa v Alessandro Bega | 3-6,3-6 |
| Challenger de Forlì | 2020/09/20 08:30 | Alessandro Bega v Christian Harrison | 3-6,2-6 |
| Challenger de Forlì | 2020/09/19 08:00 | Alessandro Bega v Michele Vianello | 7-5,6-0 |
| ITF M15 Caslano | 2020/09/06 09:00 | Sandro Ehrat v Alessandro Bega | 6-4,6-2 |
| ITF M15 Caslano | 2020/09/05 09:30 | Alessandro Bega v Harold Mayot | 1-6,6-3,6-4 |
| ITF M15 Caslano | 2020/09/04 15:40 | Alessandro Bega v Gianluigi Quinzi | 6-4,7-6 |
| ITF M15 Caslano | 2020/09/03 10:25 | Alessandro Bega v Shintaro Mochizuki | 6-3,6-2 |
| ITF M15 Caslano | 2020/09/01 15:30 | Alessandro Bega v Jeffrey Von Der Schulenburg | 6-2,6-4 |
| ITF M25 Oporto | 2020/09/30 10:30 | Emilio Nava v Johannes Haerteis | 6-1,4-6,2-6 |
| Challenger Sibiu | 2020/09/24 08:00 | Johannes Haerteis v Carlos Gomez-Herrera | 3-6,7-6,2-6 |
| Challenger Sibiu | 2020/09/23 08:00 | Arthur Rinderknech v Johannes Haerteis | 3-6,6-3,6-7 |
| Challenger Sibiu | 2020/09/21 11:25 | Johannes Haerteis v Nicholas David Ionel | 7-5,6-2 |
| Challenger de Iasi | 2020/09/12 09:00 | Johannes Haerteis v Alexandar Lazarov | 3-6,5-7 |
| ITF M25 Vogau | 2020/08/18 09:35 | Kacper Zuk v Johannes Haerteis | 7-5,6-3 |
| Tennis Point Exhibition Series | 2020/08/01 08:00 | Hazem Naw v Johannes Haerteis | 4-6,4-6 |
| Tennis Point Exhibition Series | 2020/07/31 08:00 | Constantin Schmitz v Johannes Haerteis | 0-6,3-6 |