Stadium: Court 9 Round: 44
| Challenger Bangalore | 2017/11/22 09:55 | Ramkumar Ramanathan v Jay Clarke | 7-6,2-6,4-6 |
| 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 |
| ATP Delray Beach | 2018/02/19 20:55 | Ramkumar Ramanathan v Donald Young | 1-6,2-6 |
| ATP Delray Beach Qual | 2018/02/18 17:50 | Bjorn Fratangelo v Ramkumar Ramanathan | 3-6,3-6 |
| Challenger San Luis Potosi | 2018/03/27 21:45 | Jay Clarke v Tigre Hank | 6-2,2-6,6-2 |
| ITF Qatar F3 | 2018/03/17 13:00 | Jay Clarke v Pietro Rondoni | 6-1,7-5 |
| ITF Qatar F3 | 2018/03/16 13:00 | Jay Clarke v Omar Giacalone | 6-2,6-4 |
| ITF Qatar F3 | 2018/03/15 11:30 | Jay Clarke v Jan Mertl | 6-1,7-6 |
| ITF Qatar F3 | 2018/03/14 12:00 | Jay Clarke v Gabor Borsos | 4-6,6-4,6-4 |
| ITF Qatar F3 | 2018/03/13 12:00 | Jay Clarke v Marek Gengel | 6-4,6-2 |
| ITF Qatar F2 | 2018/03/10 13:00 | Jay Clarke v Benjamin Hassan | 6-3,6-7,4-6 |
| ITF Qatar F2 | 2018/03/09 12:30 | Jay Clarke v Tobias Simon | 6-4,7-6 |