| Giraldilla Int. XD | 2019/02/23 07:20 | Minoru Koga v Kantawat Leelavechabutr | W | 2-0 |
| Giraldilla Int. XD | 2019/02/22 06:40 | Minoru Koga v Yee Han Chong | W | 2-1 |
| Giraldilla Int. XD | 2019/02/21 06:10 | Minoru Koga v Phakorn Chotphinit | W | 2-0 |
| Swedish Open | 2019/01/20 12:00 | Minoru Koga v Kean Yew Loh | W | 2-0 |
| Swedish Open | 2019/01/19 17:00 | Minoru Koga v Eetu Heino | W | 2-0 |
| Swedish Open | 2019/01/19 10:00 | Minoru Koga v Felix Burestedt | W | 2-1 |
| Swedish Open | 2019/01/18 08:30 | Kim Bruun v Minoru Koga | W | 0-2 |
| Estonian Int. | 2019/01/11 16:30 | Raul Must v Minoru Koga | L | 2-0 |
| Giraldilla Int. XD | 2019/02/23 06:50 | Runze Yan v Kodai Naraoka | W | 0-2 |
| Giraldilla Int. XD | 2019/02/21 13:20 | Ruttanapak Oupthong v Kodai Naraoka | W | 0-2 |
| Giraldilla Int. XD | 2019/02/20 11:10 | Hai Dang Nguyen v Kodai Naraoka | W | 0-2 |
| Giraldilla Int. XD | 2018/12/22 20:00 | Koki Watanabe v Kodai Naraoka | L | 2-1 |
| Giraldilla Int. XD | 2018/12/22 01:30 | Kodai Naraoka v Yu Igarashi | W | 2-0 |
| Giraldilla Int. XD | 2018/12/19 21:05 | Kodai Naraoka v Karan Rajan Rajarajan | W | 2-0 |
| Swiss Open - női páros selejtezők | 2018/08/28 12:25 | Riichi Takeshita v Kodai Naraoka | L | 2-1 |
| Swiss Open - női páros selejtezők | 2018/08/28 10:35 | Fabio Caponio v Kodai Naraoka | W | 0-2 |