Full Back · Gwangju FC · season-by-season, by competition, and every match.
Sung-Yun is operating at his career peak — the 2021/22 level is the level.
The record covers 4 seasons (2021/22–2022/23) across 2 clubs — 26 appearances, 0 goals and 0 assists.
His best campaign on record is 2021/22 at FC Seoul — Season rating 0, 0 goals and 0 assists in 12 games. Output has held steady across his last 2 full seasons (0 → 0).
| Season | Club | Apps | G | A | Rating | Season |
|---|---|---|---|---|---|---|
| 2025/26 | Gwangju FC | 2 | 0 | 0 | 37 | 0 |
| 2022/23 | FC Seoul | 10 | 0 | 0 | 42 | 0 |
| 2021/22 | FC Seoul | 12 | 0 | 0 | 43 | 0 |
| 2020/21 | FC Seoul | 2 | 0 | 0 | 42 | 0 |
| Competition | Apps | Min | G | A | Rating |
|---|---|---|---|---|---|
| FA Cup | 1 | 96 | 0 | 0 | — |
| K League 1 | 2 | 0 | 0 | 0 | — |
| Date | Competition | Opponent | Res | Status | Min | G | A | Rating |
|---|---|---|---|---|---|---|---|---|
| Feb 15 | K League 1 | H Suwon City FC | 0-0 | Unused sub | 0 | — | ||
| Feb 23 | K League 1 | A Jeonbuk Motors | 2-2 | Not in squad | — | |||
| Mar 1 | K League 1 | H FC Anyang | 2-1 | Not in squad | — | |||
| Mar 16 | K League 1 | A Gimcheon Sangmu FC | 0-0 | Not in squad | — | |||
| Mar 22 | K League 1 | H Pohang Steelers | 2-3 | Not in squad | — | |||
| Mar 29 | K League 1 | A Daejeon Citizen | 1-1 | Not in squad | — | |||
| Apr 6 | K League 1 | H Jeju United FC | 1-0 | Not in squad | — | |||
| Apr 9 | K League 1 | H Daegu FC | 2-1 | Not in squad | — | |||
| Apr 13 | K League 1 | A Gangwon FC | 0-1 | Not in squad | — | |||
| Apr 16 | FA Cup | H Gyeongju HNP | 2-0 | Not in squad | — | |||
| Apr 19 | K League 1 | A FC Seoul | 2-1 | Not in squad | — | |||
| May 2 | K League 1 | A Ulsan Hyundai FC | 0-3 | Not in squad | — | |||
| May 5 | K League 1 | H Gimcheon Sangmu FC | 1-0 | Not in squad | — | |||
| May 11 | K League 1 | H Jeonbuk Motors | 0-1 | Not in squad | — | |||
| May 14 | FA Cup | A Suwon City FC | 1-1 | Not in squad | — | |||
| May 18 | K League 1 | A Pohang Steelers | 1-0 | Not in squad | — | |||
| May 25 | K League 1 | H Gangwon FC | 0-1 | Not in squad | — | |||
| May 28 | K League 1 | H Ulsan Hyundai FC | 1-1 | Not in squad | — | |||
| Jun 1 | K League 1 | A Daegu FC | 1-1 | Not in squad | — | |||
| Jun 13 | K League 1 | H FC Seoul | 1-3 | Not in squad | — | |||
| Jun 18 | K League 1 | A Jeju United FC | 1-0 | Not in squad | — | |||
| Jun 22 | K League 1 | H Daejeon Citizen | 2-2 | Not in squad | — | |||
| Jun 28 | K League 1 | A FC Anyang | 2-1 | Not in squad | — | |||
| Jul 2 | FA Cup | H Ulsan Hyundai FC | 1-0 | Not in squad | — | |||
| Jul 18 | K League 1 | A Suwon City FC | 1-2 | Not in squad | — | |||
| Jul 22 | K League 1 | H Gimcheon Sangmu FC | 1-1 | Not in squad | — | |||
| Jul 26 | K League 1 | H Jeonbuk Motors | 1-2 | Not in squad | — | |||
| Aug 10 | K League 1 | A Pohang Steelers | 0-1 | Not in squad | — | |||
| Aug 17 | K League 1 | H Daejeon Citizen | 2-0 | Not in squad | — | |||
| Aug 20 | FA Cup | H Bucheon FC 1995 | 2-0 | Not in squad | — | |||
| Aug 23 | K League 1 | H Gangwon FC | 0-1 | Not in squad | — | |||
| Aug 27 | FA Cup | A Bucheon FC 1995 | 2-1 | Not in squad | — | |||
| Aug 30 | K League 1 | A Jeju United FC | 1-0 | Not in squad | — | |||
| Sep 14 | K League 1 | A Suwon City FC | 4-2 | Not in squad | — | |||
| Sep 21 | K League 1 | A FC Seoul | 0-3 | Not in squad | — | |||
| Sep 28 | K League 1 | A FC Anyang | 0-0 | Unused sub | 0 | — | ||
| Oct 4 | K League 1 | H Daegu FC | 2-3 | Unused sub | 0 | — | ||
| Oct 18 | K League 1 | A Ulsan Hyundai FC | 0-2 | Not in squad | — | |||
| Oct 25 | K League 1 | H FC Anyang | 1-0 | Not in squad | — | |||
| Nov 2 | K League 1 | H Jeju United FC | 2-0 | Not in squad | — | |||
| Nov 8 | K League 1 | A Daegu FC | 0-1 | Not in squad | — | |||
| Nov 22 | K League 1 | H Ulsan Hyundai FC | 2-0 | Not in squad | — | |||
| Nov 30 | K League 1 | A Suwon City FC | 1-0 | Not in squad | — | |||
| Dec 6 | FA Cup | H Jeonbuk Motors | 1-2 | Not in squad | — |