Following his move to Suwon City FC, Jae-Sung's current-season form is level with last season (Season 0→1), while his Rating eased 41→30. That makes this his strongest season for form to date.

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	Suwon City FC · 3rd	13	0	0	6.55	30	1
2022/23	Ulsan Hyundai FC · 1st	1	0	0	6.2	41	0

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

Scout report

Squad depthCentral midfielder

Kim Jae-Sung is a 27-year-old central midfielder at Suwon City FC, rated 30.1 overall by Field Insider's model. In his prime years, he has been a fringe squad member this season (3.4% of available minutes). His defensive output reads 2.21 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Jae-Sung.

On the season, Jae-Sung graded 1 for current form (age-blind), on 0 goals, 0 assists and 2.213 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 0 → 1).

On long-term talent our Rating reads 30. At 27 Jae-Sung is in his prime years, and a market index of 20.5 reflects that trajectory.

30.1

Ratingi

below regular-starter level

0.7

Seasoni

below regular-starter level

3.4%

Minutes

limited game time

2.21

Def. actions / 90

moderate defensive volume

Output in context · Suwon City FC finished 3rd of 6 · a mid-table side

2.21

Def. / 90

Tackles

Interceptions

Clean sheets

2.21 tackles, blocks & interceptions per 90 — moderate defensive volume across 13 appearances.

Watch points

Game time. Only 3.4% 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 30.1 overall — below regular-starter level. Defensively he reads as moderate defensive volume (2.21 tackles, blocks & interceptions per 90). In the prime window — at or near peak market value, so the next two seasons are the ones to cash in or build around.

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

Per 90 & availability

Minutes played %3.4%

Available fixtures40 of 40

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 902.213

Player flow

Goal involvements0

Cards / 900

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 (~21), then tapers with age. At 27, Jae-Sung sits on 20.5, at or near its peak. The blue line is Jae-Sung's projected Rating — 30.1 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.