Stadium: Lotto RLP Court Round: 24 Ground: Hardcourt indoor
| Challenger Bratislava | 2018/11/06 15:15 | Johannes Haerteis v Lukas Rosol | 3-6,3-6 |
| Challenger Bratislava | 2018/11/05 10:00 | Johannes Haerteis v Ante Pavic | 4-6,7-5,7-6 |
| Challenger Bratislava | 2018/11/04 12:20 | Matteo Viola v Johannes Haerteis | 3-6,6-7 |
| Challenger Bratislava | 2018/11/03 15:15 | Thomas Statzberger v Johannes Haerteis | 4-6,4-6 |
| Challenger Eckental | 2018/10/28 13:45 | Albano Olivetti v Johannes Haerteis | 6-3,6-4 |
| Challenger Eckental | 2018/10/27 14:00 | Johannes Haerteis v Tim Hofmann | 6-3,6-1 |
| Challenger Ismaning | 2018/10/20 15:05 | Johannes Haerteis v Gleb Sakharov | 4-6,2-6 |
| Challenger Ismaning | 2018/10/19 16:40 | Daniel Masur v Johannes Haerteis | 5-7,3-6 |
| Challenger Columbus | 2019/01/07 17:35 | Vaclav Safranek v Scott Griekspoor | 3-6,2-6 |
| Challenger Orlando | 2018/12/31 23:25 | Vaclav Safranek v Michael Redlicki | 6-7,2-6 |
| Czechia Extraliga | 2018/12/16 12:30 | Vaclav Safranek v Martin Vondrak | 6-1,6-1 |
| Czechia Extraliga | 2018/12/15 12:44 | Vaclav Safranek v Andrej Martin | 3-6,4-6 |
| Czechia Extraliga | 2018/12/15 09:00 | Vaclav Safranek v Andrej Martin | 3-6,4-6 |
| ATP Vienna | 2018/10/20 12:35 | Mikhail Kukushkin v Vaclav Safranek | 7-5,6-2 |
| Challenger Ismaning | 2018/10/16 11:00 | Vaclav Safranek v Matteo Viola | 4-6,2-6 |
| Challenger Florence | 2018/09/30 11:40 | Francesco Forti v Vaclav Safranek | 7-5,4-6,7-5 |