| Vietnam Open | 09/13 02:40 | 6 | Koya, Sai Charan v Zhen Yi Ong | L | 1-2 | |
| Vietnam Open Qual | 09/12 08:00 | 4 | Koya, Sai Charan v 퐁, 래리 | W | 2-0 | |
| Vietnam Open Qual | 09/12 05:10 | 4 | Juin An Yap v Koya, Sai Charan | W | 1-2 | |
| Croatia Open | 06/20 18:30 | - | Dominik Stipsits v Koya, Sai Charan | W | 0-2 | |
| Croatia Open | 06/20 14:25 | - | 조핸슨, 다니엘 v Koya, Sai Charan | W | 0-2 | |
| Bonn Int. | 06/16 14:45 | - | Koya, Sai Charan v 세티아부디, 바비 | L | 0-2 | |
| Bonn Int. Qual | 06/16 08:55 | - | 페브리안즈야, 무하마드 v Koya, Sai Charan | W | 1-2 | |
| Bonn Int. Qual | 06/15 14:10 | - | Karlborg, Filip v Koya, Sai Charan | W | 0-2 | |
| Bonn Int. Qual | 06/15 09:40 | - | Koya, Sai Charan v 누엔, 하이 당 | W | 2-0 | |
| Lithuanian Int. | 06/10 12:05 | - | 리알, 알바로 v Koya, Sai Charan | W | 0-2 | |
| Lithuanian Int. Qual | 06/10 06:00 | - | Dominik Stipsits v Koya, Sai Charan | W | 0-2 | |
| Lithuanian Int. Qual | 06/09 07:45 | - | Koya, Sai Charan v 프랭크, 로맹 | W | 2-0 | |
| Polish Open Qual | 03/24 09:10 | - | Koya, Sai Charan v 르에라잔, 카렌 라잔 | L | 1-2 | |
| Portugal Int. Qual | 03/11 10:00 | - | 하타노, 리쿠 v Koya, Sai Charan | L | 2-1 | |
| Portugal Int. Qual | 03/10 16:10 | - | Koya, Sai Charan v Danny Robson | W | 2-0 | |
| Portugal Int. Qual | 03/10 09:30 | - | David Silva v Koya, Sai Charan | W | 0-2 | |
| Odisha Open Qual | 01/25 08:50 | 5 | Sai Vishnu Pullela v Koya, Sai Charan | L | 2-1 | |
| Ukraine Int. | 09/07 11:20 | - | 셰이윌러, 줄리앙 v Koya, Sai Charan | W | 1-2 | |
| Latvia Int. Qual | 08/26 07:30 | - | Koya, Sai Charan v 수프로나스, 리나스 | - | Walkover | |
| German Open 2019, WD, Qualification | 09/04 06:25 | 1 | Koya, Sai Charan v 싯다르스 | L | 1-2 | |
| Giraldilla Int. XD | 01/24 05:13 | - | Koya, Sai Charan v Kumar, Dhruv | L | 1-2 |