Stadium: Lapulita&Service (CC) Round: 166 Ground: Clay
| Challenger Santiago | 2019/03/05 15:40 | Johannes Haerteis v Pedro Martinez | 1-6,4-6 |
| Challenger Santiago | 2019/03/04 15:30 | Johannes Haerteis v Sumit Nagal | 6-4,0-6,6-3 |
| Challenger Morelos | 2019/02/19 16:00 | Alejandro Gonzalez v Johannes Haerteis | 6-3,6-1 |
| ITF M25 Barnstaple | 2019/02/12 10:00 | Jack Draper v Johannes Haerteis | 7-6,6-3 |
| Challenger Koblenz | 2019/01/15 12:45 | Filip Horansky v Johannes Haerteis | 7-6,6-4 |
| Challenger Koblenz | 2019/01/14 15:40 | Johannes Haerteis v Vaclav Safranek | 7-6,4-6,6-3 |
| 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 |
| ITF M25 Santa Margherita | 2019/03/26 13:00 | Nicolo Turchetti v Marco Bortolotti | 7-5,6-3 |
| ITF M15 Murcia | 2019/03/22 11:50 | Carlos Lopez Montagud v Marco Bortolotti | 7-6,7-6 |
| ITF M15 Murcia | 2019/03/21 14:10 | Pedro Vives Marcos v Marco Bortolotti | 3-6,6-2,3-6 |
| ITF M15 Murcia | 2019/03/19 10:30 | Goran Markovic v Marco Bortolotti | 1-6,7-5,1-6 |
| ITF M25 Trento | 2019/02/26 18:00 | Jules Okala v Marco Bortolotti | 6-1,6-0 |
| ITF M25 Aktobe | 2019/02/21 09:15 | Konstantin Kravchuk v Marco Bortolotti | 6-1,7-5 |
| ITF M25 Aktobe | 2019/02/20 09:40 | Simon Yitbarek v Marco Bortolotti | 4-6,4-6 |
| ITF M25 Aktobe | 2019/02/14 05:00 | Teymuraz Gabashvili v Marco Bortolotti | 6-2,6-1 |