| Thailand Open | 05/15 14:00 | 5 | Koo Takahashi v 나라오카, 고다이 | L | 0-2 | |
| Spain Masters | 03/28 11:55 | 4 | 왕, 저우 웨이 v Koo Takahashi | L | 2-1 | |
| Spain Masters | 03/27 18:30 | 5 | Koo Takahashi v 키다미비, 스리칸스 | W | 2-0 | |
| Spain Masters 2020, MS, Qualification | 03/26 11:30 | - | 바스케스, 알바로 v Koo Takahashi | W | 1-2 | |
| Spain Masters 2020, MS, Qualification | 03/26 09:00 | 4 | Koo Takahashi v 드와카효, 에이드 레스키 | 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 Tanaka, Yushi | L | 0-2 | |
| Orleans Masters | 03/16 16:00 | 2 | 치, 유 젠 v Koo Takahashi | W | 0-2 | |
| Orleans Masters | 03/15 16:30 | 3 | 치엄 , 준 웨이 v Koo Takahashi | W | 0-2 | |
| Orleans Masters | 03/14 14:55 | 4 | 크리스토퍼슨, 매즈 에밀 v Koo Takahashi | W | 0-2 | |
| Orleans Masters | 03/13 19:05 | 5 | Koo Takahashi v Daniil Dubovenko | W | 2-1 | |
| Japan Masters Qual | 11/14 03:05 | - | Koo Takahashi v Jeon, Hyeok Jin | L | 0-2 | |
| Japan Masters Qual | 11/14 02:00 | 4 | 왕차로엔, 칸타폰 v Koo Takahashi | - | Walkover | |
| Korea Masters | 11/08 01:00 | 5 | Koo Takahashi v 루다, 얀 | L | 1-2 | |
| Indonesia Masters | 10/27 09:05 | 3 | Koo Takahashi v 오바야시, 타쿠마 | L | 1-2 | |
| Indonesia Masters | 10/26 11:15 | 4 | Prahdiska B Shujiwo v Koo Takahashi | W | 0-2 | |
| Indonesia Masters | 10/25 09:10 | 5 | Koo Takahashi v Rasindu Hendahewa | W | 2-0 | |
| Indonesia Masters | 10/24 13:35 | 6 | Koo Takahashi v 림, 총 킹 | - | Walkover | |
| Kaohsiung Masters | 09/26 11:20 | 6 | S.K. Karunakaran v Koo Takahashi | L | 2-0 | |
| Vietnam Open | 09/15 08:00 | 3 | Koo Takahashi v Teh, Jia Heng Jason | L | 0-2 | |
| Vietnam Open | 09/14 07:45 | 4 | Jhuo-Fu Liao v Koo Takahashi | W | 1-2 | |
| Vietnam Open | 09/13 09:40 | 5 | Koo Takahashi v Shogo Ogawa | W | 2-0 | |
| Vietnam Open | 09/13 01:40 | 6 | Yu-Han Hsu v Koo Takahashi | W | 0-2 | |
| Indonesia Masters | 09/10 06:00 | 1 | Koo Takahashi v 조지, 키란 | L | 0-2 | |
| Indonesia Masters | 09/09 07:15 | 2 | Tanaka, Yushi v Koo Takahashi | W | 0-2 | |
| Indonesia Masters | 09/09 06:30 | - | Tanaka, Yushi v Koo Takahashi | W | 0-2 | |
| Indonesia Masters | 09/08 08:05 | 3 | Po-Wei Wang v Koo Takahashi | W | 0-2 | |
| Indonesia Masters | 09/07 06:05 | 4 | Koo Takahashi v 미샤라, 아랩 | W | 2-0 | |
| Indonesia Masters | 09/06 07:50 | 5 | 슐러, 야곱 v Koo Takahashi | W | 0-2 | |
| Indonesia Masters | 09/05 12:25 | 6 | 린, 콴 -팅 v Koo Takahashi | W | 0-2 |