| Orleans Masters MD | 2019/03/24 13:00 | Koga/Saito v Lee / Wang | L | 1-2 |
| Orleans Masters MD | 2019/03/23 14:30 | Koga/Saito v Lee Y / Lu C Y | W | 2-0 |
| Orleans Masters MD | 2019/03/22 17:45 | Chang/Lee v Koga/Saito | W | 0-2 |
| Orleans Masters MD | 2019/03/21 14:30 | Koga/Saito v Hemming C / Wolfenden T | W | 2-0 |
| Orleans Masters MD | 2019/03/20 09:30 | Koga/Saito v Dwicahyo A R / Qowimuramadhoni A | W | 2-0 |
| Open de Suisse - Doubles Hommes | 2019/03/13 09:40 | Koga/Saito v Angriawan / Hardi. | L | 1-2 |
| Masters de Thaïlande - Doubles Hommes | 2019/01/12 07:30 | Goh V S / Tan W K v Koga/Saito | L | 2-0 |
| Masters de Thaïlande - Doubles Hommes | 2019/01/11 12:00 | Koga/Saito v Di / Wang | W | 2-1 |