| International du Portugal Qualif. | 2022/03/10 16:30 | Matthias Kicklitz v Riku Hatano | W | 0-2 |
| International du Portugal Qualif. | 2022/03/10 09:30 | Riku Hatano v Callum Smith | W | 2-1 |
| Open de Slovaquie | 2022/03/05 13:20 | Yu Jen Chi v Riku Hatano | W | 0-2 |
| Open de Slovaquie | 2022/03/05 08:30 | Riku Hatano v Chia Hao Lee | W | 2-1 |
| Open de Slovaquie | 2022/03/04 15:40 | Yin Chak Chan v Riku Hatano | W | 1-2 |
| Open de Slovaquie | 2022/03/04 09:10 | Gregoire Deschamp v Riku Hatano | W | 0-2 |
| Open de Slovaquie | 2022/03/03 15:30 | Riku Hatano v Milan Dratva | W | 2-1 |
| Belgian International 2019, MS | 2021/10/28 12:55 | Riku Hatano v Lucas Claerbout | L | 0-2 |
| International du Portugal Qualif. | 2022/03/10 16:10 | Koya, Sai Charan v Danny Robson | W | 2-0 |
| International du Portugal Qualif. | 2022/03/10 09:30 | David Silva v Koya, Sai Charan | W | 0-2 |
| Odisha Open Qual | 2022/01/25 08:50 | Sai Vishnu Pullela v Koya, Sai Charan | L | 2-1 |
| Ukraine Int. | 2021/09/07 11:20 | Julien Scheiwiller v Koya, Sai Charan | W | 1-2 |
| Open de Suisse - Doubles Femmes - Qualif. | 2018/09/04 06:25 | Koya, Sai Charan v Siddharth | L | 1-2 |
| Giraldilla Int. XD | 2017/01/24 05:13 | Koya, Sai Charan v Kumar, Dhruv | L | 1-2 |