Kang Yun-Sung

Yun-Sung's current-season form is down 40% on last season (Season 10→6), while his Rating eased 36→27. His peak season for form remains 2022/23 (Season 24).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	Daejeon Citizen · 2nd	25	1	1	6.97	27	6
2024/25	Daejeon Citizen · 3rd	19	0	1	6.8	36	10
2023/24	Daejeon Citizen · 2nd	13	1	0	6.43	39	5
2022/23	Gimcheon Sangmu FC · 3rd	28	0	2	6.92	47	24
2021/22	Jeju United FC · 4th	23	0	0	6.55	41	11

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.

Scout report

Squad depthBall-winning Full-back

Kang Yun-Sung is a 29-year-old full-back at Daejeon Citizen, rated 26.9 overall by Field Insider's model. An experienced operator, he has been a fringe squad member this season (15.6% of available minutes). His defensive output reads 4.54 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Yun-Sung.

On the season, Yun-Sung graded 6 for current form (age-blind), on 1 clean sheet and 4.542 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 10 → 6). Over the 5 seasons on record his form has drifted down, peaking in 2022/23.

On long-term talent our Rating reads 27. At 29 Yun-Sung is in his prime years, and a market index of 10.1 reflects that trajectory.

From the career report

Read the full career report →

Below his 2022/23 peak but holding a solid level — the platform for a return is there.

Peak: 2022/23Holding levelRemarkably consistent

26.9

Ratingi

below regular-starter level

6.2

Seasoni

below regular-starter level

15.6%

Minutes

limited game time

4.54

Def. actions / 90

solid defensive volume

Output in context · Daejeon Citizen finished 2nd of 6 · a title-challenging side

4.54

Def. / 90

Tackles

Interceptions

Clean sheets

4.54 tackles, blocks & interceptions per 90 — solid defensive volume, with 1 clean sheet across 25 appearances. Behind a title-challenging side (2nd of 6) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume. Going forward he chipped in 1 goal and 1 assist — a useful bonus from the back.

Strengths

Attacking threat. Chips in from deep: 0.34 goal involvements per 90, useful for a full-back.
Defensive volume. 4.54 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

Game time. Only 15.6% of available minutes — needs a settled run to prove the level.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 26.9 overall — below regular-starter level. Defensively he reads as solid defensive volume (4.54 tackles, blocks & interceptions per 90), with a bit more on the ball than most in the role. Experienced and reliable, but the value curve is easing (1.1× now → 0.8× projected in three years).

Generated from Field Insider's rating model · AI-written analysis to follow.

Per 90 & availability

Minutes played %15.6%

Available fixtures38 of 38

Goals / 900.168

Assists / 900.168

Goal contribution / 900.336

Defensive actions / 904.542

Player flow

Goal involvements2

Shot conversion %100

Shot accuracy %100

Dribble success %37.5

Cards / 900.505

Foul involvement / 901.514

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~18), then tapers with age. At 29, Yun-Sung sits on 10.1, past its peak and easing. The blue line is Yun-Sung's projected Rating — 26.9 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.