| Challenger Ochsenhausen | 2017/03/20 19:00 | Valerij Rakov v Gustavo Yokota | L | 1-3 |
| Challenger Ochsenhausen | 2018/01/29 12:10 | Valerij Rakov v Richard Vyborny | L | 0-3 |
| Challenger Ochsenhausen | 2018/01/29 09:30 | Fedor Kuzmin v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2018/01/09 10:00 | Joao Geraldo v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2018/01/09 08:00 | Alvaro Robles v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2018/01/08 19:40 | Petr David v Valerij Rakov | L | 3-0 |
| Challenger Ochsenhausen | 2018/01/08 17:40 | Valerij Rakov v Enzo Angles | L | 0-3 |
| Challenger Ochsenhausen | 2018/01/08 15:00 | Valerij Rakov v Mohamed Shouman | W | 3-2 |
| Challenger Ochsenhausen | 2018/01/08 12:10 | Valerij Rakov v Bohumil Vozicky | L | 0-3 |
| Challenger Ochsenhausen | 2018/01/29 11:30 | Fedor Kuzmin v Gustavo Yokota | L | 3-2 |
| Challenger Ochsenhausen | 2018/01/29 08:50 | Josip Huzjak v Gustavo Yokota | L | 3-0 |
| Qatar Open - Mixed dubbel | 2017/05/03 13:25 | Vitor Santos v Gustavo Yokota | W | 1-3 |
| Challenger Ochsenhausen | 2017/03/21 10:40 | Yannick Vostes v Gustavo Yokota | L | 3-0 |
| Challenger Ochsenhausen | 2017/03/21 09:20 | Frane Kojic v Gustavo Yokota | L | 3-2 |
| Challenger Ochsenhausen | 2017/03/20 19:00 | Valerij Rakov v Gustavo Yokota | W | 1-3 |
| Challenger Ochsenhausen | 2017/03/20 17:00 | Sushmit Sriram v Gustavo Yokota | W | 1-3 |
| Challenger Ochsenhausen | 2017/03/20 13:30 | Luan Bruno v Gustavo Yokota | W | 1-3 |