Stadium: Court 3 Round: 24 Ground: Grass
| Challenger Nottingham | 2018/06/13 13:55 | Tobias Kamke v Ramkumar Ramanathan | 6-7,3-6 |
| Challenger Fairfield | 2017/10/09 22:00 | Ramkumar Ramanathan v Tobias Kamke | 4-6,6-4,4-6 |
| Challenger St Brieuc | 2016/03/29 11:45 | Ramkumar Ramanathan v Tobias Kamke | 6-7,1-6 |
| ATP Delray Beach | 2019/02/16 16:00 | Marcelo Arevalo v Ramkumar Ramanathan | 6-2,3-6,7-6 |
| ATP New York | 2019/02/12 17:50 | Ramkumar Ramanathan v Jason Jung | 3-6,6-3,1-6 |
| ATP New York | 2019/02/11 18:00 | Ramkumar Ramanathan v Tim Smyczek | 6-3,3-6,7-5 |
| ATP New York | 2019/02/10 21:20 | Ramkumar Ramanathan v Roy Smith | 4-6,6-2,6-4 |
| Challenger Budapest | 2019/02/06 09:00 | Ramkumar Ramanathan v Uladzimir Ignatik | 6-7,5-7 |
| 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 |
| Challenger Bangkok | 2019/02/15 04:00 | Tobias Kamke v Dudi Sela | 6-1,4-6,2-6 |
| Challenger Bangkok | 2019/02/14 04:30 | Yuichi Sugita v Tobias Kamke | 6-3,0-6,4-6 |
| Challenger Bangkok | 2019/02/13 04:40 | Denis Yevseyev v Tobias Kamke | 5-7,1-6 |
| Challenger Quimper | 2019/02/01 17:50 | Tobias Kamke v Ugo Humbert | 7-6,2-6,4-6 |
| Challenger Quimper | 2019/01/31 11:45 | Sergiy Stakhovsky v Tobias Kamke | 6-3,3-6,6-7 |
| Challenger Quimper | 2019/01/30 09:00 | Tobias Kamke v Fabrizio Ornago | 6-0,6-4 |
| Challenger Quimper | 2019/01/28 19:40 | Daniel Gimeno-Traver v Tobias Kamke | 2-6,4-6 |
| Challenger Koblenz | 2019/01/16 18:05 | Roman Safiullin v Tobias Kamke | 6-0,6-7,6-3 |