Field Insider
Full-backKorea RepublicK League 1

Yoon Jong-Gyu

Squad depthUlsan Hyundai FC · 28 yrsNot playing
27.4
±0%
Ratingi
3.4
±0%
Seasoni
4.1
Valuei

based on the 2025 season · updated 20 Aug 2026

Profile

Full nameJong-Gyu Yoon
PositionFull-back
NationalityKorea Republic
Age28
Date of birth20 Mar 1998
BirthplacePohang
Height173 cm
Shirt number#2
ClubUlsan Hyundai FC
More about Yoon Jong-Gyu →
Full-back

Season stats

Full career & schedule →
3
Appearances
0
Goals
0
Assists
102
Minutes

Domestic-league season · Ulsan Hyundai FC.

Performance data · by competition

CompetitionAppsGAMinMatch
K League 13001024.5

Scout report

Squad depthFull-back

Yoon Jong-Gyu is a 28-year-old full-back at Ulsan Hyundai FC, rated 28.1 overall by Field Insider's model. An experienced operator, he has been a fringe squad member this season (6.2% of available minutes). His defensive output reads 2.54 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Jong-Gyu.

On the season, Jong-Gyu graded 3 for current form (age-blind), on 1 clean sheet and 2.535 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 3 → 3). Over the 6 seasons on record his form has drifted down, peaking in 2021/22.

On long-term talent our Rating reads 28. At 28 Jong-Gyu is in his prime years, and a market index of 4.1 reflects that trajectory.

From the career report
Read the full career report →

Past his 2021/22 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2021/22Trending down
28.1
Ratingi
below regular-starter level
3.4
Seasoni
below regular-starter level
6.2%
Minutes
limited game time
2.54
Def. actions / 90
moderate defensive volume

Output in context · Ulsan Hyundai FC finished 3rd of 13 · an upper-table side

12
Apps
2.54
Def. / 90
3
Tackles
2
Interceptions
1
Clean sheets

2.54 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 12 appearances. Behind an upper-table side (3rd 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 6.2% 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 28.1 overall — below regular-starter level. Defensively he reads as moderate defensive volume (2.54 tackles, blocks & interceptions per 90). Experienced and reliable, but the value curve is easing (1.2× now → 0.9× projected in three years).

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

Transfer news

No transfer news found for this player.