Stadium: Cancha 1 Round: 24 Ground: Clay
| 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 |
| 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 Chennai | 2019/02/05 05:50 | Duckhee Lee v Sumit Nagal | 6-3,6-4 |
| Challenger Chennai | 2019/02/04 09:15 | David Perez Sanz v Sumit Nagal | 3-6,2-6 |
| Challenger Koblenz | 2019/01/14 14:20 | Roman Safiullin v Sumit Nagal | 6-2,6-1 |
| Challenger Da Nang | 2019/01/09 05:00 | Tsung-Hua Yang v Sumit Nagal | 2-6,6-1,6-0 |
| Challenger Da Nang | 2019/01/08 05:00 | N.Sriram Balaji v Sumit Nagal | 6-7,6-7 |
| Challenger Pune | 2018/11/20 05:30 | Radu Albot v Sumit Nagal | 7-5,6-2 |
| Challenger Bangalore | 2018/11/15 09:30 | Saketh Myneni v Sumit Nagal | 6-4,6-4 |
| Challenger Bangalore | 2018/11/14 08:50 | James Ward v Sumit Nagal | 3-6,6-7 |