Stadium: Court 1 Round: 26 Ground: Grass
| 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 |
| Challenger St Brieuc | 2018/03/30 18:05 | Tobias Kamke v Constant Lestienne | 1-6,4-6 |
| Challenger St Brieuc | 2018/03/29 16:00 | Tobias Kamke v Evan Furness | 7-6,6-0 |
| Challenger St Brieuc | 2018/03/28 14:00 | Sergiy Stakhovsky v Tobias Kamke | 4-6,3-6 |
| Challenger Lille | 2018/03/25 13:00 | Gregoire Barrere v Tobias Kamke | 6-1,6-4 |
| Challenger Lille | 2018/03/24 13:50 | Tobias Kamke v Maxime Janvier | 7-6,6-4 |
| Challenger Lille | 2018/03/23 17:00 | Antoine Hoang v Tobias Kamke | 1-6,6-3,3-6 |
| Challenger Lille | 2018/03/22 17:00 | Tobias Kamke v Constant Lestienne | 6-0,7-6 |
| Challenger Lille | 2018/03/20 09:30 | Tobias Kamke v Uladzimir Ignatik | 6-4,6-3 |
| Davis Cup | 2018/04/06 02:00 | Yibing Wu v Ramkumar Ramanathan | 7-6,6-4 |
| Challenger Marbella | 2018/03/29 11:40 | Ramkumar Ramanathan v Marco Cecchinato | 1-6,4-6 |
| Challenger Marbella | 2018/03/28 11:00 | Sumit Nagal v Ramkumar Ramanathan | 2-6,3-6 |
| Challenger Marbella | 2018/03/27 12:25 | Ramkumar Ramanathan v Alessandro Giannessi | 6-4,3-6,6-3 |
| ATP Miami Qual | 2018/03/19 14:00 | Michael Mmoh v Ramkumar Ramanathan | 7-6,6-4 |
| ATP Indian Wells Qual | 2018/03/07 20:30 | Yuki Bhambri v Ramkumar Ramanathan | 6-4,6-2 |
| ATP Indian Wells Qual | 2018/03/07 01:15 | Michael Mmoh v Ramkumar Ramanathan | 3-6,5-7 |
| ATP Acapulco Qual | 2018/02/24 22:00 | Kevin King v Ramkumar Ramanathan | 6-3,6-0 |