| Challenger Pune | 2019/11/15 07:30 | Ramkumar Ramanathan v Sumit Nagal | 6-4,7-6 |
| Challenger Pune | 2019/11/13 09:15 | Aryan Goveas v Sumit Nagal | 3-6,6-7 |
| Challenger Lima | 2019/10/22 20:40 | Orlando Luz v Sumit Nagal | 6-1,6-4 |
| Challenger Campinas | 2019/10/05 16:25 | Sumit Nagal v Juan Pablo Ficovich | 4-6,1-6 |
| Challenger Campinas | 2019/10/04 15:00 | Francisco Cerundolo v Sumit Nagal | 6-7,5-7 |
| Challenger Campinas | 2019/10/03 16:15 | Orlando Luz v Sumit Nagal | 5-7,3-6 |
| Challenger Buenos Aires | 2019/09/29 16:00 | Facundo Bagnis v Sumit Nagal | 4-6,2-6 |
| Challenger Buenos Aires | 2019/09/28 14:00 | Thiago Monteiro v Sumit Nagal | 0-6,1-6 |