Stadium: Centre Court Round: 26 Ground: Hardcourt indoor
| Davis Cup | 2019/02/01 05:30 | Ramkumar Ramanathan v Andreas Seppi | 4-6,2-6 |
| Australian Open | 2019/01/09 23:00 | Rudolf Molleker v Ramkumar Ramanathan | 5-7,7-5,7-6 |
| Australian Open | 2019/01/08 02:50 | Sergio Gutierrez-Ferrol v Ramkumar Ramanathan | 3-6,2-6 |
| ATP Pune | 2019/01/02 16:50 | Ramkumar Ramanathan v Malek Jaziri | 7-6,6-7,3-6 |
| ATP Pune | 2019/01/01 13:30 | Marcel Granollers v Ramkumar Ramanathan | 6-4,4-6,3-6 |
| Challenger Pune | 2018/11/20 10:50 | Arjun Kadhe v Ramkumar Ramanathan | 6-3,6-2 |
| Challenger Bratislava | 2018/11/08 11:35 | Ramkumar Ramanathan v Matthias Bachinger | 3-6,6-3,2-6 |
| Challenger Bratislava | 2018/11/06 12:15 | Ramkumar Ramanathan v Sergio Gutierrez-Ferrol | 6-3,7-5 |
| Challenger Canberra | 2019/01/06 03:25 | Chien Hsun Lo v Marc-Andrea Huesler | 5-7,2-6 |
| ITF M25 Hong Kong | 2019/01/02 06:35 | Chien Hsun Lo v Alen Avidzba | 0-6,4-6 |
| Challenger Pune | 2018/11/18 10:05 | Chien Hsun Lo v Sebastian Fanselow | 3-6,3-6 |
| Challenger Pune | 2018/11/17 10:25 | Chien Hsun Lo v Dalwinder Singh | 5-7,7-5,6-3 |
| Challenger Bangalore | 2018/11/10 09:45 | Siddharth Vishwakarma v Chien Hsun Lo | 6-2,2-6,7-5 |
| Challenger Shenzhen 2 | 2018/10/27 02:00 | Yaraslav Shyla v Chien Hsun Lo | 7-6,4-6,6-3 |
| Challenger Liuzhou | 2018/10/20 10:25 | Youssef Hossam v Chien Hsun Lo | 7-6,3-6,6-2 |
| Challenger Kaohsiung | 2018/09/16 06:55 | Soonwoo Kwon v Chien Hsun Lo | 6-0,7-6 |