Stadium: Court 8 Round: 26 Ground: Hardcourt outdoor
| ITF Turkey F35 | 2017/09/19 07:30 | Vidak, Antun v Tanuma, Ryota | 4-6,2-6 |
| ITF Romania F12 | 2017/08/29 10:10 | Tanuma, Ryota v Apostol, Andrei Stefan | 4-6,2-6 |
| ITF Romania F11 | 2017/08/22 11:25 | Borza, Bogdan v Tanuma, Ryota | 6-4,6-2 |
| ITF Romania F10 | 2017/08/15 07:00 | Patael, Ben v Tanuma, Ryota | 6-2,6-3 |
| ITF Romania F9 | 2017/08/08 12:05 | Madaras, Dragos Nicolae v Tanuma, Ryota | 1-6,6-1,6-1 |
| ITF Romania F8 | 2017/08/02 07:40 | Tanuma, Ryota v Frunza, Nicolae | 2-6,3-6 |
| ITF Hong Kong F2 | 2017/06/28 04:00 | Hu, Nicholas S v Tanuma, Ryota | 6-1,0-6,6-2 |
| ITF Hong Kong F2 | 2017/06/27 06:30 | Yeung, Pak Long v Tanuma, Ryota | 3-6,6-7 |
| ITF Turkey F35 | 2017/09/20 07:30 | Willems, Johann v Statzberger, Thomas | 6-2,7-6 |
| ITF Netherlands F5 | 2017/08/17 10:00 | Meis, Pascal v Willems, Johann | 6-3,7-6 |
| ITF Netherlands F5 | 2017/08/15 14:35 | Willems, Johann v van Den Brink, Floris | 6-7,6-2,6-1 |
| ITF Netherlands F4 | 2017/07/13 13:10 | Tepavac, Marko v Willems, Johann | 7-6,6-1 |
| ITF Netherlands F4 | 2017/07/11 09:30 | Willems, Johann v Wagner, Bastian | 6-2,3-6,6-4 |
| ITF Germany F6 | 2017/07/04 11:00 | Jose Pereira v Willems, Johann | 4-6,6-3,6-2 |
| ITF Germany F5 | 2017/06/30 12:40 | Antoine Hoang v Willems, Johann | 6-3,6-2 |
| ITF Germany F5 | 2017/06/29 09:00 | Martinez Sarrasague, Felipe v Willems, Johann | 6-7,6-7 |