Stadium: Centre Court Round: 54 Ground: Hardcourt indoor
| Challenger Bratislava | 2018/11/04 12:20 | Viola, Matteo v Haerteis, Johannes | 3-6,6-7 |
| Challenger Bratislava | 2018/11/03 15:15 | Statzberger, Thomas v Haerteis, Johannes | 4-6,4-6 |
| Challenger Eckental | 2018/10/28 13:45 | Albano Olivetti v Haerteis, Johannes | 6-3,6-4 |
| Challenger Eckental | 2018/10/27 14:00 | Haerteis, Johannes v Hofmann, Tim | 6-3,6-1 |
| Challenger Ismaning | 2018/10/20 15:05 | Haerteis, Johannes v Gleb Sakharov | 4-6,2-6 |
| Challenger Ismaning | 2018/10/19 16:40 | Daniel Masur v Haerteis, Johannes | 5-7,3-6 |
| Challenger Ismaning | 2018/10/18 12:00 | Lukas Klein v Haerteis, Johannes | 3-6,6-4,5-7 |
| Challenger Ismaning | 2018/10/17 14:25 | Haerteis, Johannes v Dennis Novak | 0-6,7-6,7-5 |
| Challenger Bratislava | 2018/11/04 10:50 | Hampel, Lenny v Pavic, Ante | 6-7,4-6 |
| Challenger Bratislava | 2018/11/03 10:00 | Marc-Andrea Huesler v Pavic, Ante | 6-7,5-7 |
| Challenger Ismaning | 2018/10/13 14:50 | Pavic, Ante v Lukas Klein | 6-3,3-6,4-6 |
| Challenger Ortisei | 2018/10/10 12:35 | Gregoire Barrere v Pavic, Ante | 7-6,7-6 |
| Challenger Ortisei | 2018/10/09 14:25 | Pavic, Ante v Lacko, Lukas | 7-6,7-6 |
| Metz, France | 2018/09/16 08:00 | Bernard Tomic v Pavic, Ante | 7-5,7-5 |
| Challenger Banja Luka | 2018/09/11 08:00 | Dimitar Kuzmanov v Pavic, Ante | 6-1,7-6 |
| Challenger Seville | 2018/09/04 08:30 | Pavic, Ante v Brkic, Tomislav | 6-4,4-6,3-6 |