| Osaka Int. MD | 2019/04/04 03:20 | Koga/Saito v Maulana A / Prihardika G A | W | 2-1 |
| 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/Tan v Koga/Saito | L | 2-0 |
| China Masters MD | 2019/03/14 05:40 | Choong H J / Man W C v Di / Wang | L | 0-2 |
| China Masters MD | 2019/03/13 09:20 | Liang / Shang v Choong H J / Man W C | W | 1-2 |
| Giraldilla Int. XD | 2019/02/23 08:10 | Choong H J / Man W C v Low/Ng | L | 0-2 |
| Giraldilla Int. XD | 2019/02/22 08:40 | Narongrit M / Phakjarung W v Choong H J / Man W C | W | 1-2 |