Field Insider
Full-backKorea RepublicK League 1

Yoon Jae-Seok

Squad depthGimcheon Sangmu FC · 22 yrsNot playing
38
10.2%
Ratingi
3.9
±0%
Seasoni
10.2
Valuei

based on the 2025 season · updated 20 Aug 2026

Profile

Full nameJae-Seok Yoon
PositionFull-back
NationalityKorea Republic
Age22
Date of birth22 Oct 2003
Height177 cm
Shirt number#54
ClubGimcheon Sangmu FC
More about Yoon Jae-Seok →
Full-back

Season stats

Full career & schedule →
5
Appearances
0
Goals
0
Assists
72
Minutes

Domestic-league season · Gimcheon Sangmu FC.

Performance data · by competition

CompetitionAppsGAMinMatch
K League 1500726.3

Scout report

Squad depthFull-back

Yoon Jae-Seok is a 22-year-old full-back at Ulsan Hyundai FC, rated 43.7 overall by Field Insider's model. An emerging talent, he has been a fringe squad member this season (12.3% of available minutes). His defensive output reads 2.99 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Jae-Seok.

On the season, Jae-Seok graded 4 for current form (age-blind), on 1 clean sheet and 2.986 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 4 → 4).

On long-term talent our Rating reads 44. At 22 Jae-Seok is still climbing toward his ceiling, and a market index of 10.2 reflects that trajectory.

43.7
Ratingi
developing / rotation level
3.9
Seasoni
below regular-starter level
12.3%
Minutes
limited game time
2.99
Def. actions / 90
moderate defensive volume

Output in context · Ulsan Hyundai FC finished 2nd of 13 · a title-challenging side

30
Apps
2.99
Def. / 90
11
Tackles
3
Interceptions
1
Clean sheets

2.99 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 30 appearances. Behind a title-challenging side (2nd of 13) 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.

Watch points

  • Game time. Only 12.3% 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 43.7 overall — developing / rotation level. Defensively he reads as moderate defensive volume (2.99 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 1.9×) with the best seasons likely ahead.

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

Season statistics

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

Shooting

Goals0

Passing

Assists0

Defending

Tackles11
Interceptions3

Yellow/red cards

Yellow cards3
Red cards0

Transfer news

No transfer news found for this player.