| Giraldilla International DX | 2018/08/08 02:05 | Mithun Manjunath v Ryotaro Maruo | L | 2-1 |
| Open di Svizzera DF - Qual. | 2018/08/07 09:52 | Ryotaro Maruo v Chico Aura Dwi Wardoyo | W | 2-1 |
| Open di Svizzera DF - Qual. | 2018/08/07 05:40 | Chi Ting Chen v Ryotaro Maruo | W | 0-2 |
| Giraldilla International DX | 2018/07/27 06:40 | Koki Watanabe v Ryotaro Maruo | L | 2-0 |
| Giraldilla International DX | 2018/07/26 08:00 | Vladimir Nikulov v Ryotaro Maruo | W | 0-2 |
| Giraldilla International DX | 2018/07/25 07:20 | Ryotaro Maruo v Parupalli Kashyap | W | 2-0 |
| Giraldilla International DX | 2018/04/05 02:00 | Ryotaro Maruo v Panji Ahmad Maulana | L | 0-2 |
| Masters d'Indonesia DX | 2017/07/22 05:10 | Sergey Sirant v Ryotaro Maruo | L | 3-0 |
| Masters d'Indonesia DX | 2017/11/29 03:50 | Hua Chun Liang v Chia Hsuan Lin | L | 0-2 |
| Masters d'Indonesia DX | 2017/11/28 08:10 | Hua Chun Liang v Pit Seng Low | W | 2-0 |