| Giraldilla Int. XD | 2018/04/08 02:30 | Kodai Naraoka v Yu Igarashi | L | 1-2 |
| Giraldilla Int. XD | 2018/12/19 21:05 | Kodai Naraoka v Karan Rajan Rajarajan | W | 2-0 |
| Swiss Open WD Qual | 2018/08/28 12:25 | Riichi Takeshita v Kodai Naraoka | L | 2-1 |
| Swiss Open WD Qual | 2018/08/28 10:35 | Fabio Caponio v Kodai Naraoka | W | 0-2 |
| Giraldilla Int. XD | 2018/07/25 06:10 | Sitthikom Thammasin v Kodai Naraoka | L | 2-0 |
| Giraldilla Int. XD | 2018/07/24 01:30 | Kodai Naraoka v Pit Seng Low | W | 2-0 |
| Giraldilla Int. XD | 2018/06/21 22:30 | Thomas Rouxel v Kodai Naraoka | L | 2-1 |
| Giraldilla Int. XD | 2018/06/20 23:50 | Kodai Naraoka v Yuxiang Huang | W | 2-1 |
| Giraldilla Int. XD | 2018/06/20 02:20 | Kodai Naraoka v Antonio Li | W | 2-0 |
| Giraldilla Int. XD | 2018/12/21 01:05 | Chia Hung Lu v Yu Igarashi | W | 0-2 |
| Giraldilla Int. XD | 2018/12/19 21:05 | Chun-Yi Lin v Yu Igarashi | W | 1-2 |
| Giraldilla Int. XD | 2018/12/18 23:00 | Jose Guevara v Yu Igarashi | W | 0-2 |
| Macau Open | 2018/10/31 03:40 | Iskandar Zulkarnain v Yu Igarashi | L | 2-1 |
| Giraldilla Int. XD | 2018/09/01 16:28 | Suppanyu Avihingsanon v Yu Igarashi | L | 2-0 |
| Giraldilla Int. XD | 2018/09/01 15:20 | Suppanyu Avihingsanon v Yu Igarashi | L | 2-0 |
| Giraldilla Int. XD | 2018/08/31 13:00 | Jan O Jorgensen v Yu Igarashi | W | 0-2 |
| Giraldilla Int. XD | 2018/08/30 09:00 | Yu Igarashi v Toma Junior Popov | W | 2-0 |