Round: 29 Ground: Clay
| ITF Japan F5 | 2014/06/04 01:00 | Gengo Kikuchi v Yusuke Watanuki | 2-6,6-4,6-4 |
| ITF Japan F8 | 2016/06/18 01:00 | Gengo Kikuchi v Yuki Mochizuki | 6-3,7-6 |
| ITF Japan F8 | 2016/06/17 01:00 | Yuya Kibi v Gengo Kikuchi | 6-7,6-3,3-6 |
| ITF Japan F8 | 2016/06/16 02:50 | Gengo Kikuchi v Kazuki Nishiwaki | 7-6,6-4 |
| ITF Japan F8 | 2016/06/14 03:00 | Gengo Kikuchi v Masaki Sasai | 7-5,6-4 |
| ITF Japan F7 | 2016/06/06 01:00 | Gengo Kikuchi v Evan King | 4-6,4-6 |
| ITF Japan F6 | 2016/06/03 03:10 | Gengo Kikuchi v Deiton Baughman | 1-6,4-6 |
| ITF Japan F6 | 2016/06/02 01:00 | Andrew Whittington v Gengo Kikuchi | 3-6,3-6 |
| ITF Japan F6 | 2016/05/31 02:30 | Ken Onishi v Gengo Kikuchi | 1-6,4-6 |
| ITF Japan F8 | 2016/06/18 03:15 | Yusuke Watanuki v Renta Tokuda | 7-5,6-2 |
| ITF Japan F8 | 2016/06/17 03:40 | Sho Shimabukuro v Yusuke Watanuki | 6-7,1-6 |
| ITF Japan F8 | 2016/06/16 03:20 | Yuta Shimizu v Yusuke Watanuki | 3-6,6-3,4-6 |
| ITF Japan F7 | 2016/06/10 01:00 | Yusuke Watanuki v Evan King | 5-7,4-6 |
| ITF Japan F7 | 2016/06/09 01:00 | Yusuke Watanuki v Ryota Tanuma | 6-0,6-2 |
| ITF Japan F7 | 2016/06/06 04:40 | Yusuke Watanuki v Shunrou Takeshima | 7-5,6-4 |
| ITF Japan F5 | 2016/04/06 04:15 | Masato Shiga v Yusuke Watanuki | 7-6,6-4 |
| ITF Japan F1 | 2016/03/10 02:45 | Katsuki Nagao v Yusuke Watanuki | 1-6,6-2,1-6 |