Na Sung-seung
Na Sung-seung is a South Korean badminton player.
Achievements
Asian Junior Championships
Boys' doubles| Year | Venue | Partner | Opponent | Score | Result |
| 2017 | Jakarta, Indonesia |  Lee Sang-min |  Di Zijian Wang Chang | 19–21, 11–21 | Silver |
Mixed doubles
| Year | Venue | Partner | Opponent | Score | Result |
| 2017 | Jakarta, Indonesia | Seong Ah-yeong |  Rehan Naufal Kusharjanto Siti Fadia Silva Ramadhanti | 19–21, 21–19, 9–21 | Silver |
BWF World Tour
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 |
| 2019 | Vietnam Open | Super 100 | Wang Chan | Choi Sol-gyu Seo Seung-jae | 21–18, 16–21, 14–21 | Runner-up |
| 2019 | Hyderabad Open | Super 100 | Wang Chan | Muhammad Shohibul Fikri Bagas Maulana | 18–21, 18–21 | Runner-up |