Stadium: Court 17 Round: 44 Ground: Hardcourt outdoor
| Challenger Liuzhou | 2018/10/23 02:00 | Sumit Nagal v Tatsuma Ito | 2-6,3-6 |
| ATP Hamburg | 2019/07/23 10:50 | Sumit Nagal v Richard Gasquet | 2-6,6-7 |
| ATP Hamburg | 2019/07/21 10:00 | Alejandro Davidovich Fokina v Sumit Nagal | 3-6,5-7 |
| ATP Hamburg | 2019/07/20 09:30 | Sumit Nagal v Sebastian Ofner | 7-5,6-2 |
| Challenger Milan | 2019/06/29 14:00 | Danilo Petrovic v Sumit Nagal | 7-5,6-2 |
| Challenger Milan | 2019/06/28 16:00 | Sumit Nagal v Aslan Karatsev | 6-4,7-6 |
| Challenger Milan | 2019/06/25 15:20 | Sumit Nagal v Laurynas Grigelis | 6-2,6-3 |
| Challenger Bratislava | 2019/06/22 13:05 | Sumit Nagal v Norbert Gombos | 1-6,6-4,2-6 |
| Challenger Bratislava | 2019/06/21 14:00 | Sumit Nagal v Andrej Martin | 6-4,6-2 |
| Challenger Yokkaichi | 2019/08/10 04:25 | Tatsuma Ito v James Duckworth | 3-6,4-6 |
| Challenger Yokkaichi | 2019/08/09 04:30 | Saketh Myneni v Tatsuma Ito | 6-7,1-6 |
| Challenger Yokkaichi | 2019/08/08 08:10 | Shinji Hazawa v Tatsuma Ito | 0-6,3-6 |
| Challenger Yokkaichi | 2019/08/07 08:15 | Kento Takeuchi v Tatsuma Ito | 6-7,1-6 |
| Challenger Chengdu | 2019/08/03 05:30 | Tatsuma Ito v Hyeon Chung | 2-6,6-7 |
| Challenger Chengdu | 2019/08/02 09:15 | Shuichi Sekiguchi v Tatsuma Ito | 2-6,1-6 |
| Challenger Chengdu | 2019/08/01 06:15 | Matthew Romios v Tatsuma Ito | 2-6,1-6 |
| Challenger Chengdu | 2019/07/30 05:10 | Makoto Ochi v Tatsuma Ito | 4-6,3-6 |