| Davis Cup | 2017/04/07 09:30 | Ramkumar Ramanathan v Temur Ismailov | 6-2,5-7,6-2,7-5 |
| Challenger Leon Qual | 2017/03/27 16:00 | Ramkumar Ramanathan v Danilo Petrovic | 3-6,6-3,1-6 |
| Challenger Guadalajara Qual | 2017/03/20 19:30 | Alex De Minaur v Ramkumar Ramanathan | 7-6,5-7,6-4 |
| Challenger Guadalajara Qual | 2017/03/19 23:00 | Juan Ignacio Londero v Ramkumar Ramanathan | 3-6,1-6 |
| Challenger Guadalajara Qual | 2017/03/19 20:10 | Daniel Elahi Galan v Ramkumar Ramanathan | 5-7,2-6 |
| Challenger Irving Qual | 2017/03/14 18:00 | Ramkumar Ramanathan v Andrey Rublev | 6-3,3-6,2-6 |
| Challenger Irving Qual | 2017/03/13 22:10 | Jozef Kovalik v Ramkumar Ramanathan | 6-7,3-6 |
| Challenger Irving Qual | 2017/03/13 18:40 | Ramkumar Ramanathan v Federico Gaio | 5-7,6-1,6-4 |
| 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 |
| ITF Indonesia F2 | 2017/02/15 04:50 | Masato Shiga v Ken Onoda | 6-1,7-5 |
| ITF Indonesia F2 Qual | 2017/02/13 07:00 | George Botezan v Ken Onoda | 4-6,6-3,2-6 |
| ITF Indonesia F2 Qual | 2017/02/12 09:50 | Yasutaka Suzuki v Ken Onoda | 6-7,6-2,4-6 |
| ITF Indonesia F1 | 2017/02/08 05:30 | Ken Onoda v Kazuma Kawachi | 3-6,3-6 |
| ITF Indonesia F1 Qual | 2017/02/06 06:35 | Ken Onoda v Tony Bourcet | 6-7,6-4,7-5 |
| ITF Indonesia F1 Qual | 2017/02/05 06:10 | Ken Onoda v Hao Yuan Ng | 6-4,6-1 |