Stadium: Court 5 Round: 45 Ground: Clay
| Challenger Yokohama | 2017/02/28 01:00 | Yosuke Watanuki v Ze Zhang | 3-6,0-6 |
| Challenger Kyoto | 2017/02/24 06:00 | Yosuke Watanuki v Blaz Kavcic | 4-6,6-2,4-6 |
| Challenger Kyoto | 2017/02/22 08:10 | Ruben Bemelmans v Yosuke Watanuki | 6-1,4-6,6-7 |
| Challenger Kyoto | 2017/02/20 06:25 | Joris De Loore v Yosuke Watanuki | 4-6,6-3,6-7 |
| Challenger Toyota | 2016/11/16 02:15 | Tatsuma Ito v Yosuke Watanuki | 6-4,6-4 |
| Challenger Toyota | 2016/11/15 01:00 | Yosuke Watanuki v Ante Pavic | 6-3,6-3 |
| Challenger Kobe | 2016/11/10 02:00 | Yosuke Watanuki v Duckhee Lee | 1-6,2-6 |
| Challenger Kobe | 2016/11/09 02:00 | Ti Chen v Yosuke Watanuki | 4-6,4-6 |
| ITF Egypt F8 | 2017/03/09 10:40 | Denis Klok v Benjamin Lock | 7-6,7-5 |
| ITF Egypt F8 | 2017/03/08 11:00 | Pierre Louis Dodens v Benjamin Lock | 2-6,2-6 |
| ITF Turkey F8 | 2017/03/02 06:30 | Benjamin Lock v Anil Yuksel | 3-6,3-6 |
| ITF Turkey F8 | 2017/03/01 08:15 | Benjamin Lock v Gijs Brouwer | 7-5,6-3 |
| ITF Turkey F8 | 2017/02/27 09:00 | Benjamin Lock v Alexander Igoshin | 6-4,6-2 |
| ITF Turkey F7 | 2017/02/24 08:00 | Benjamin Lock v Alexander Lazov | 0-6,2-6 |
| ITF Turkey F7 | 2017/02/22 09:25 | Benjamin Lock v Gibril Diarra | 6-2,6-3 |
| ITF Turkey F7 | 2017/02/21 07:00 | Benjamin Lock v Evan Song | 6-4,6-1 |