Kang Yun-Sung

Yun-Sung's current-season form is up 133% on last season (Season 6→14), while his Rating held around 28. His peak season for form remains 2022/23 (Season 24).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2026/27	Daejeon Citizen · 5th	26	1	0	5.5	24	7
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
2023/24	Gimcheon Sangmu FC	9	0	0	—	—	—
2022/23	Gimcheon Sangmu FC · 3rd	28	0	2	6.92	47	24

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 6 earlier seasons in the full career.

Korea Republic · international

Side	Apps	G
Korea Republic U23	8	0

Career caps & goals — tournament breakdown in the full career.

Scout report

Squad depthCentral defender

Kang Yun-Sung is a 29-year-old central defender at Daejeon Citizen, rated 27.5 overall by Field Insider's model, ranking 100th of 153 on scout potential in the K League 1. An experienced operator, he has been a fringe squad member this season (34.6% of available minutes). His defensive output reads 3.34 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Yun-Sung.

Judged on this season alone, Yun-Sung graded 14 — a workmanlike campaign that ranks 19th of 30 of the 30 centre-backs in the K League 1, on 3 clean sheets and 3.34 defensive actions per 90.

Year-on-year, that's a clear step up on last season (Season 6 → 14). Over the 6 seasons on record his form has trended upward, peaking in 2022/23.

On long-term talent our Rating reads 28, 15th of 30 of the 30 centre-backs in the K League 1. At 29 Yun-Sung is in his prime years, and a market index of 3.7 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

Current potential15th of 30 centre-backs · K League 1 Current season19th of 30 centre-backs · K League 1 19th-best centre-back in the K League 1 100th in the K League 1 · potential 15th-highest potential centre-back in the K League 1

27.5

Ratingi

15th of 30 centre-backs

14.1

Seasoni

below regular-starter level

34.6%

Minutes

limited game time

3.34

Def. actions / 90

moderate defensive volume

Output in context · Daejeon Citizen finished 5th of 12 · a mid-table side

Apps

3.34

Def. / 90

Tackles

Interceptions

Clean sheets

3.34 tackles, blocks & interceptions per 90 — moderate defensive volume, with 3 clean sheets across 26 appearances. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.

Watch points

Game time. Only 34.6% of available minutes — needs a settled run to prove the level.
Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 27.5, Yun-Sung carries the 15th-highest potential of the centre-backs in the K League 1 of 30. Defensively he reads as moderate defensive volume (3.34 tackles, blocks & interceptions per 90). 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 %34.6%

Available fixtures32 of 32

Goals / 900.09

Assists / 900

Goal contribution / 900.09

Defensive actions / 903.34

Player flow

Goal involvements1

Shot conversion %100

Shot accuracy %20

Pass accuracy %81

Dribble success %33.3

Cards / 900.271

Foul involvement / 901.986

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 (~7), then tapers with age. At 29, Yun-Sung sits on 3.7, past its peak and easing. The blue line is Yun-Sung's projected Rating — 27.5 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.

Season statistics

Bars = where he ranks among centre-backs in the K League 1 with 600+ minutes this season.

Shooting

Goals1

Shots on target1

Shots5

Passing

Assists0

Chances created5

Passes395

Pass accuracy81%

Possession

Successful dribbles2

Dribble success33.3%

Duels won40

Duels won %52.6%

Fouls won10

Defending

Tackles22

Interceptions13

Blocks2

Fouls committed12

Penalties conceded1—

Yellow/red cards

Yellow cards3

Red cards0

Transfer history

Daejeon CitizenJun 2023 – now

Jeju United FC(back from loan)Jun 2023 – Jun 2023

Gimcheon Sangmu FC(on loan)Dec 2021 – Jun 2023

Jeju United FCuntil Dec 2021

About Kang Yun-Sung

Yun-Sung Kang is a 29-year-old centre-back who plays for Daejeon Citizen, born on July 1, 1997 in Busan, standing 172 cm tall. He is from Korea Republic. Daejeon Citizen currently sit 5th of 12 in the K League 1.

This season

In the current season, Kang Yun-Sung has made 26 appearances with 1 goal and 0 assists across 997 minutes, averaging a 5.58 match rating over his last 9 rated games, with 3 yellow cards. Though primarily a centre-back, he has also lined up in midfield this season.

When Kang Yun-Sung plays, Daejeon Citizen's record this season is 6W-5D-3L — and his match ratings average 6.24 at home against 5.72 on the road.

Recent matches

October 18, 2026: 3-2 win at home vs Gwangju FC (90 minutes, 5.6 rating)
October 9, 2026: 2-1 win at home vs Jeonbuk Motors (4 minutes, 5.9 rating)
September 20, 2026: 1-1 draw away at Incheon United (90 minutes, 1 goal, 6.65 rating)
September 12, 2026: 2-2 draw at home vs Pohang Steelers (90 minutes, 6.3 rating)
September 9, 2026: 3-2 win at home vs FC Anyang (90 minutes, 6.1 rating)
September 5, 2026: 5-0 win away at Bucheon FC 1995 (90 minutes, 0 rating)
July 21, 2026: 0-0 draw away at Jeonbuk Motors (89 minutes, 6.6 rating)
July 12, 2026: 0-0 draw away at Jeju United FC (90 minutes, 6.6 rating)
May 16, 2026: 1-2 loss at home vs FC Seoul (4 minutes)
April 26, 2026: 4-1 win away at Ulsan Hyundai FC (90 minutes, 6.5 rating)

Field Insider's view

Field Insider currently rates Kang Yun-Sung at 27.5 with a Season form score of 14.1, ranking 100th of 153 centre-backs in the K League 1. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 4 career titles — among them the K League 2 and the AFC U23 Asian Cup. Full list in the career record.

Career

Across 11 recorded seasons, Kang Yun-Sung has totalled 253 club appearances with 9 goals and 4 assists for 3 different clubs. His busiest campaign came in 2022/23, with 28 appearances for Gimcheon Sangmu FC.

Kang Yun-Sung's career has also included time at Jeju United FC and Gimcheon Sangmu FC.

On the international stage, Kang Yun-Sung has represented Korea Republic U23 — 8 caps in our records.

Transfer news

No transfer news found for this player.

Profile

Season stats

Performance data · by competition

Career

Scout report

Output in context · Daejeon Citizen finished 5th of 12 · a mid-table side

Watch points

Outlook

Per 90 & availability

Player flow

Season-by-season progression

Value & potential by age

Season statistics

Shooting

Passing

Possession

Defending

Yellow/red cards

Transfer history

About Kang Yun-Sung

This season

Recent matches

Field Insider's view

Career

Transfer news

Related players

Career

Per 90 & availability

Player flow

Season-by-season progression

Value & potential by age

Transfer history

About Kang Yun-Sung

This season

Recent matches

Field Insider's view

Career

Related players