Round: 54 Ground: Hardcourt outdoor
| ITF - Japan F8 | 2015/06/25 01:00 | Keisuke Numajiri v Keisuke Watanuki | 3-6,3-6 |
| ITF - Japan F1 | 2016/03/05 03:00 | Keisuke Numajiri v Kaito Uesugi | 2-6,6-3,3-6 |
| ITF - Türkei F5 | 2016/02/01 09:30 | Keisuke Numajiri v Ryota Kishi | 2-6,2-6 |
| ITF - Türkei F5 | 2016/01/30 08:00 | Keisuke Numajiri v Peter Balla | 4-6,6-3,6-4 |
| ITF - Türkei F4 | 2016/01/23 08:00 | Domagoj Biljesko v Keisuke Numajiri | 6-0,6-1 |
| ITF - Türkei F3 | 2016/01/18 09:00 | Vadym Ursu v Keisuke Numajiri | 6-7,6-3,6-4 |
| ITF - Türkei F3 | 2016/01/17 08:30 | Philip Wilbert Major v Keisuke Numajiri | 3-6,3-6 |
| ITF - Katar F5 | 2015/12/09 13:30 | Joris De Loore v Keisuke Numajiri | 6-1,6-3 |
| ITF - Katar F5 | 2015/12/08 12:35 | Keisuke Numajiri v Ameur Ben Hassen | 6-2,6-2 |
| ITF - Japan F1 | 2016/03/10 02:35 | Takuto Niki v Keisuke Watanuki | 7-5,6-2 |
| ITF - Japan F1 | 2016/03/07 01:00 | Keisuke Watanuki v Kazuma Kawachi | 6-1,6-1 |
| ITF - Japan F1 | 2016/03/06 03:00 | Keisuke Watanuki v Sora Fukuda | 6-1,3-6,6-3 |
| ITF - Japan F1 | 2016/03/05 03:00 | Keisuke Watanuki v Yuichiro Inui | 6-2,6-3 |
| ITF - Japan F8 | 2015/06/25 01:00 | Keisuke Numajiri v Keisuke Watanuki | 3-6,3-6 |
| ITF - Japan F8 | 2015/06/24 02:45 | Keisuke Watanuki v Yuichi Ito | 6-1,7-5 |
| ITF - Japan F7 | 2015/06/16 02:15 | Arata Onozawa v Keisuke Watanuki | 7-6,0-6,6-3 |
| ITF - Japan F6 | 2015/06/11 02:55 | Takuto Niki v Keisuke Watanuki | 6-7,7-6,6-4 |