Stadium: I Bilanciai (C1) Round: 24 Ground: Clay
| Challenger - Barletta | 2019/04/08 08:00 | Sumit Nagal v Matteo Arnaldi | 6-3,7-5 |
| Challenger - Drummondville | 2019/03/12 18:10 | Tristan Lamasine v Sumit Nagal | 6-2,6-3 |
| Challenger - Drummondville | 2019/03/11 20:10 | Kevin King v Sumit Nagal | 3-6,3-6 |
| Challenger - Santiago | 2019/03/04 15:30 | Johannes Haerteis v Sumit Nagal | 6-4,0-6,6-3 |
| 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 Sophia Antipolis | 2019/04/02 09:50 | Peter Heller v Simone Bolelli | 2-6,5-7 |
| Challenger Sophia Antipolis | 2019/04/01 09:00 | Uladzimir Ignatik v Peter Heller | 6-2,3-6,6-7 |
| Challenger - Marbella | 2019/03/25 14:00 | Peter Heller v Enzo Couacaud | 2-6,4-6 |
| ITF - M15 Poreč | 2019/03/12 14:40 | Benjamin Hassan v Peter Heller | 3-6,7-6,6-4 |
| Challenger - Pau | 2019/02/25 17:30 | Bernabe Zapata Miralles v Peter Heller | 6-3,6-3 |
| Challenger - Bergamo | 2019/02/18 17:40 | Peter Heller v Danilo Petrovic | 6-3,5-7,3-6 |
| Challenger Budapest | 2019/02/04 12:20 | Alex Molcan v Peter Heller | 5-7,7-5,7-6 |
| ITF M25 - Nußloch | 2019/01/27 13:00 | Peter Heller v Botic Van De Zandschulp | 2-6,2-6 |