Home History
| ITF Singapore F2 | 2017/05/30 08:40 | Ramkumar Ramanathan v Shaheed Alam | 6-1,6-0 |
| French Open Qual | 2017/05/22 15:00 | Guido Pella v Ramkumar Ramanathan | 6-2,6-1 |
| Challenger Samarkand | 2017/05/15 09:10 | Ramkumar Ramanathan v Adrian Menendez-Maceiras | 6-3,3-6,6-7 |
| Challenger Karshi | 2017/05/09 05:00 | Ramkumar Ramanathan v Cem Ilkel | 4-6,4-6 |
| Challenger Savannah | 2017/05/04 14:00 | Ramkumar Ramanathan v Stefan Kozlov | 1-6,2-6 |
| Challenger Savannah | 2017/05/02 19:00 | Ramkumar Ramanathan v Ryan Shane | 6-4,7-5 |
| Challenger Tallahassee | 2017/04/29 19:30 | Ramkumar Ramanathan v Blaz Rola | 2-6,7-6,5-7 |
| Challenger Tallahassee | 2017/04/29 01:25 | Andrea Arnaboldi v Ramkumar Ramanathan | 2-6,7-5,4-6 |
Away History
| ITF Singapore F2 | 2017/05/30 07:15 | Congsup Congcar v Ken Onoda | 7-5,3-6,2-6 |
| ITF Singapore F2 Qual | 2017/05/29 04:20 | David Nguyen v Ken Onoda | 3-6,2-6 |
| ITF Singapore F2 Qual | 2017/05/28 04:00 | Kazuki Nishiwaki v Ken Onoda | 5-7,6-1,1-6 |
| ITF Singapore F1 | 2017/05/25 03:20 | Ken Onoda v Yuichi Ito | 3-6,6-3,1-6 |
| ITF Singapore F1 Qual | 2017/05/22 07:05 | Michael Look v Ken Onoda | 4-6,7-5,3-6 |
| ITF Singapore F1 Qual | 2017/05/21 04:00 | Sherwin Foo v Ken Onoda | 3-6,5-7 |
| ITF Japan F5 | 2017/04/01 01:00 | Ken Onoda v Tomohiro Masabayashi | 3-6,6-7 |
| ITF Japan F4 | 2017/03/25 00:00 | Yunosuke Tanaka v Ken Onoda | 6-3,6-0 |