| Malaysia Masters | 05/23 08:20 | 4 | Tien Chen Chou v Koo Takahashi | L | 2-0 | |
| Malaysia Masters | 05/22 03:45 | 5 | Koo Takahashi v Christo Popov | W | 2-0 | |
| Malaysia Masters Qual | 05/21 06:10 | - | Koo Takahashi v Joo Ven Soong | W | 2-1 | |
| Malaysia Masters Qual | 05/21 02:00 | 4 | Hyeok Jin Jeon v Koo Takahashi | W | 0-2 | |
| Thailand Open | 05/15 14:00 | 5 | Koo Takahashi v Kodai Naraoka | L | 0-2 | |
| Spain Masters | 03/28 11:55 | 4 | Tzu Wei Wang v Koo Takahashi | L | 2-1 | |
| Spain Masters | 03/27 18:30 | 5 | Koo Takahashi v Srikanth Kidambi | W | 2-0 | |
| Spain Masters Qual | 03/26 11:30 | - | Alvaro Vazquez v Koo Takahashi | W | 1-2 | |
| Spain Masters Qual | 03/26 09:00 | 4 | Koo Takahashi v Ade Resky Dwicahyo | W | 2-0 | |
| Swiss Open Qual | 03/19 10:10 | 4 | Alwi Farhan v Koo Takahashi | L | 2-0 | |
| Orleans Masters | 03/17 12:25 | 1 | Koo Takahashi v Yushi Tanaka | L | 0-2 | |
| Orleans Masters | 03/16 16:00 | 2 | Yu Jen Chi v Koo Takahashi | W | 0-2 |