Stadium: Center Round: 26 Ground: Hardcourt outdoor
| Challenger Shenzhen 2 | 2019/10/30 04:25 | Tung-Lin Wu v Ramkumar Ramanathan | 6-3,7-6 |
| Challenger Ismaning | 2019/10/15 10:55 | Ramkumar Ramanathan v Teymuraz Gabashvili | 3-6,6-7 |
| Challenger Mouilleron le Captif | 2019/10/09 09:30 | Dennis Novak v Ramkumar Ramanathan | 6-4,6-2 |
| Challenger Mouilleron le Captif | 2019/10/08 08:00 | Tobias Kamke v Ramkumar Ramanathan | 6-2,6-7,4-6 |
| Challenger Barcelona | 2019/10/01 12:05 | Ramkumar Ramanathan v Tommy Robredo | 5-7,4-6 |
| Challenger Orleans | 2019/09/25 09:00 | Gregoire Barrere v Ramkumar Ramanathan | 7-5,6-4 |
| Challenger Orleans | 2019/09/24 10:25 | Alexandre Muller v Ramkumar Ramanathan | 4-6,4-6 |
| Challenger Glasgow | 2019/09/21 12:30 | Alexandre Muller v Ramkumar Ramanathan | 7-5,1-6,6-4 |
| Challenger Ningbo | 2019/10/17 05:00 | Borna Gojo v Ze Zhang | 6-3,6-7,6-2 |
| Challenger Ningbo | 2019/10/16 02:00 | Ze Zhang v Alex Bolt | 6-4,6-4 |
| Challenger Ningbo | 2019/10/15 03:25 | Chun Hsin Tseng v Ze Zhang | 4-6,6-4,4-6 |
| ATP Shanghai | 2019/10/07 13:20 | Ze Zhang v Pablo Carreno Busta | 3-6,6-2,4-6 |
| ATP Zhuhai | 2019/09/23 11:30 | Adrian Mannarino v Ze Zhang | 7-6,7-5 |
| Challenger Jinan | 2019/09/04 05:40 | James Duckworth v Ze Zhang | 6-1,6-4 |
| Challenger Jinan | 2019/09/02 07:40 | Ze Zhang v Fajing Sun | 6-3,6-4 |
| US Open | 2019/08/21 15:00 | Elliot Benchetrit v Ze Zhang | 6-3,6-2 |