Stadium: Court 1 Round: 64 Ground: Hardcourt indoor
| ITF Italy F2 | 2017/03/01 14:10 | Galovic, Viktor v Haerteis, Johannes | 1-6,6-7 |
| Challenger Bratislava | 2020/11/08 11:00 | Haerteis, Johannes v Lenz, Julian | 7-6,4-6,6-7 |
| Challenger Eckental | 2020/11/04 12:55 | Sebastian Korda v Haerteis, Johannes | 6-2,1-6,6-1 |
| Challenger Eckental | 2020/11/02 18:40 | Maden, Yannick v Haerteis, Johannes | 2-6,6-4,3-6 |
| Challenger Eckental | 2020/11/01 13:15 | Lukas Klein v Haerteis, Johannes | 1-6,4-6 |
| Challenger Eckental | 2020/10/31 09:00 | Leopold Zima v Haerteis, Johannes | 0-6,3-6 |
| Challenger Ismaning | 2020/10/17 14:20 | Hugo Grenier v Haerteis, Johannes | 6-3,6-4 |
| ITF M25 Porto | 2020/10/01 11:30 | Bega, Alessandro v Haerteis, Johannes | 6-4,0-6,7-5 |
| ITF M25 Porto | 2020/09/30 10:30 | Emilio Nava v Haerteis, Johannes | 6-1,4-6,2-6 |
| ITF M15 Quinta Do Lago | 2020/11/05 09:50 | Galovic, Viktor v Monteiro, Joao | 4-6,4-6 |
| ITF M15 Quinta Do Lago | 2020/11/04 10:00 | Galovic, Viktor v March, Antonio Cayetano | 6-3,6-4 |
| ITF - M25 Vale Do Lobo | 2020/10/30 12:00 | Galovic, Viktor v Gastao Elias | 2-6,6-7 |
| ITF - M25 Vale Do Lobo | 2020/10/29 12:40 | Galovic, Viktor v Duje Ajdukovic | 6-4,6-4 |
| ITF - M25 Vale Do Lobo | 2020/10/28 10:30 | Galovic, Viktor v Genaro Alberto Olivieri | 6-4,6-2 |
| Istanbul, Turkey | 2020/10/18 12:25 | Mackenzie McDonald v Galovic, Viktor | 6-2,6-4 |
| Istanbul, Turkey | 2020/10/17 08:45 | Nedelko, Ivan v Galovic, Viktor | 4-6,2-6 |
| Lisbon, Portugal | 2020/10/10 09:00 | Orlando Luz v Galovic, Viktor | 6-4,4-6,6-4 |