Chang Ko-chi
Chang Ko-chi is a Taiwanese badminton player.
Achievements
BWF World Tour (1 title)
The BWF World Tour, announced on 19 March 2017 and implemented in 2018, is a series of elite badminton tournaments, sanctioned by Badminton World Federation. The BWF World Tour are divided into six levels, namely World Tour Finals, Super 1000, Super 750, Super 500, Super 300, and the BWF Tour Super 100.Men's doubles
| Year | Tournament | Level | Partner | Opponent | Score | Result |
| 2018 | Bangka Belitung Indonesia Masters | Super 100 |  Lu Chia-pin |  Ko Sung-hyun Shin Baek-cheol | 23–21, 21–13 | Winner |
BWF Grand Prix (1 runner-up)
The BWF Grand Prix has two levels, the BWF Grand Prix and Grand Prix Gold. It is a series of badminton tournaments sanctioned by the Badminton World Federation since 2007.Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2015 | Chinese Taipei Masters | Chang Hsin-tien |  Ronald Alexander Melati Daeva Oktaviani | 18–21, 27–25, 15–21 | Runner-up |
BWF International Challenge/Series (2 titles, 2 runners-up)
Men's doubles| Year | Tournament | Partner | Opponent | Score | Result |
| 2019 | Portugal International | Lee Fang-jen |  Christopher Grimley Matthew Grimley | 16–21, 21–16, 21–13 | Winner |
Mixed doubles
| Year | Tournament | Partner | Opponent | Score | Result |
| 2019 | Portugal International | Lee Chih-chen |  Alex Vlaar Mariya Mitsova | 21–12, 21–14 | Winner |
| 2017 | Orleans International | Chang Hsin-tien |  Mark Lamsfuss Isabel Herttrich | 9–21, 15–21 | Runner-up |
| 2016 | Italian International | Chang Hsin-tien |  Jordan Corvee Anne Tran | 13–21, 21–17, 17–21 | Runner-up |