Round: 44 Ground: Hardcourt outdoor
| ITF Japan F4 | 2015/03/29 00:00 | Keisuke Numajiri v Ken Onoda | 6-0,1-6,6-3 |
| ITF Japan F2 | 2016/03/12 00:30 | Keisuke Numajiri v Keisuke Watanuki | 6-2,2-6,1-6 |
| ITF Japan F1 | 2016/03/05 03:00 | Keisuke Numajiri v Kaito Uesugi | 2-6,6-3,3-6 |
| ITF Turkey F5 | 2016/02/01 09:30 | Keisuke Numajiri v Ryota Kishi | 2-6,2-6 |
| ITF Turkey F5 | 2016/01/30 08:00 | Keisuke Numajiri v Peter Balla | 4-6,6-3,6-4 |
| ITF Turkey F4 | 2016/01/23 08:00 | Domagoj Biljesko v Keisuke Numajiri | 6-0,6-1 |
| ITF Turkey F3 | 2016/01/18 09:00 | Vadym Ursu v Keisuke Numajiri | 6-7,6-3,6-4 |
| ITF Turkey F3 | 2016/01/17 08:30 | Philip Wilbert Major v Keisuke Numajiri | 3-6,3-6 |
| ITF Qatar F5 | 2015/12/09 13:30 | Joris De Loore v Keisuke Numajiri | 6-1,6-3 |
| ITF Japan F3 | 2016/03/19 01:00 | Shi Hong Zeng v Ken Onoda | 4-6,2-6 |
| ITF Japan F2 | 2016/03/13 01:00 | Katsuki Nagao v Ken Onoda | 6-3,5-7,6-4 |
| ITF Japan F1 | 2016/03/06 03:00 | Ken Onoda v Tung-Lin Wu | 3-6,4-6 |
| ITF Japan F1 | 2016/03/05 03:00 | Ken Onoda v Kousuke Ogura | 7-6,7-5 |
| ITF Turkey F6 | 2016/02/11 16:45 | Ken Onoda v Alexander Bublik | 1-6,6-7 |
| ITF Turkey F6 | 2016/02/09 08:00 | Ken Onoda v Anton Desyatnik | 6-1,6-1 |
| ITF Turkey F4 | 2016/01/24 09:30 | Milan Drinic v Ken Onoda | 6-4,0-6,6-4 |
| ITF China F12 Qual | 2015/08/02 07:30 | Ken Onoda v YiShuo Fan | 6-1,6-1 |