| Internazionali del Vietnam | 2019/04/11 04:15 | Ryotaro Maruo v Jia Wei Tan | L | 1-2 |
| Open di Svizzera DF - Qual. | 2018/09/19 04:00 | Ryotaro Maruo v Sitthikom Thammasin | L | 0-2 |
| Open di Svizzera DF - Qual. | 2018/09/18 12:20 | Ryotaro Maruo v Hua Chun Liang | W | 2-0 |
| 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 |
| White Nights | 2019/07/12 14:45 | Iikka Heino v Egor Kurdyukov | L | 1-2 |
| White Nights | 2019/07/12 07:20 | Subhankar Dey v Iikka Heino | W | 0-2 |
| Internazionali di Spagna - Qual. | 2019/06/12 13:30 | Iikka Heino v Wolfgang Gnedt | W | 2-0 |
| Slovenia Int. | 2019/05/16 14:00 | Luis Enrique Penalver v Iikka Heino | L | 2-0 |
| Slovenia Int. | 2019/05/16 09:00 | Kyrylo Leonov v Iikka Heino | W | 0-2 |
| Denmark Int. Qual | 2019/05/09 08:30 | Albin Carl Hjelm v Iikka Heino | L | 2-0 |
| Open di Finlandia | 2019/04/05 08:25 | Iikka Heino v Luis Enrique Penalver | L | 1-2 |
| Open di Polonia | 2019/03/29 09:30 | Iikka Heino v Toma Junior Popov | L | 0-2 |