Domestic-league season · FC Seoul.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 FA Cup | 1 | 1 | 0 | 90 | — |
 K League 1 | 5 | 0 | 0 | 45 | 6.3 |
Seong-Jin's current-season form is down 100% on last season (Season 9→0), while his Rating eased 46→37. His peak season for form remains 2022/23 (Season 15).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | FC Seoul · 6th | 5 | 0 | 0 | 6.3 | 37 | 0 |
| 2024/25 | FC Seoul · 4th | 22 | 2 | 1 | 6.6 | 46 | 9 |
| 2023/24 | FC Seoul · 1st | 3 | 0 | 0 | 6.2 | 43 | 0 |
| 2022/23 | FC Seoul · 3rd | 34 | 1 | 4 | 6.61 | 50 | 15 |
| 2021/22 | FC Seoul · 3rd | 14 | 1 | 2 | 6.71 | 48 | 8 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
Kang Seong-Jin is a 23-year-old winger at FC Seoul, rated 36.6 overall by Field Insider's model. An emerging talent, he has been a fringe squad member this season (1.3% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Seong-Jin.
On the season, Seong-Jin graded 0 for current form (age-blind), on 0 goals and 0 assists in 5 appearances (0 involvements per 90).
Year-on-year, that's a drop on last season (Season 9 → 0). Over the 5 seasons on record his form has drifted down, peaking in 2022/23.
On long-term talent our Rating reads 37. At 23 Seong-Jin is still climbing toward his ceiling, and a market index of 24.9 reflects that trajectory.
Below his 2022/23 peak but holding a solid level — the platform for a return is there.
0 goals in 5 appearances (0 per game) — light end product the role wants to see climb.
Rated 36.6 overall — developing / rotation level. In the final third he profiles as a work-in-progress on end product (0 goal contributions per 90). Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead.
Generated from Field Insider's rating model · AI-written analysis to follow.
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 (~25), then tapers with age. At 23, Seong-Jin sits on 24.9, at or near its peak. The blue line is Seong-Jin's projected Rating — 36.6 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.
No transfer news found for this player.
