Boys' singles
Boys' singles
| Year | Tournament | Opponent | Score | Result | |
|---|---|---|---|---|---|
| 2018 | MIRYANG WONCHEON YONEX Korea Junior Open International Challenge |  Kim Byung-jae | 21–11, 22–20 | Winner | |
| 2018 | Singapore Youth International Series |  Shunya Ota | 21–12, 21–7 | Winner |
BWF Junior International Grand Prix tournament
BWF Junior International Challenge tournament
BWF Junior International Series tournament
BWF Junior Future Series tournament
Jason Gunawan is a badminton player from Hong Kong.[1]