Domestic-league season · Suwon City FC.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 FA Cupat FC Seoul | 1 | 0 | 0 | 69 | — |
 K League 1at FC Seoul | 1 | 0 | 0 | 0 | — |
Following his move to Suwon City FC, Si-Young's current-season form is up 500% on last season (Season 1→6), while his Rating eased 35→27. His peak season for form remains 2021/22 (Season 20).
| Season | Club | Apps | G | A | Match | RTG | Season |
|---|---|---|---|---|---|---|---|
| 2025/26 | Suwon City FC · 3rd | 18 | 0 | 0 | 6.75 | 27 | 6 |
| 2023/24 | FC Seoul · 1st | 8 | 0 | 0 | 6.8 | 35 | 1 |
| 2022/23 | Seongnam FC · 3rd | 30 | 0 | 2 | 6.73 | 46 | 11 |
| 2021/22 | Seongnam FC · 3rd | 23 | 0 | 1 | 6.83 | 45 | 20 |
Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.
Lee Si-Young is a 29-year-old full-back at Suwon City FC, rated 26.6 overall by Field Insider's model, ranking 77th of 148 in the K League 1. An experienced operator, he has been a fringe squad member this season (29.9% of available minutes). His defensive output reads 2.09 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Si-Young.
Judged on this season alone, Si-Young graded 6 — a workmanlike campaign that ranks 22nd of 23 of the 23 full-backs in the K League 1, on 2 clean sheets and 2.093 defensive actions per 90.
Year-on-year, that's a clear step up on last season (Season 1 → 6). Over the 4 seasons on record his form has drifted down, peaking in 2021/22.
On long-term talent our Rating reads 27, top 40% of the 23 full-backs in the K League 1. At 29 Si-Young is in his prime years, and a market index of 9.9 reflects that trajectory.
Below his 2021/22 peak but holding a solid level — the platform for a return is there.
2.09 tackles, blocks & interceptions per 90 — moderate defensive volume, with 2 clean sheets across 19 appearances.
With a Rating of 26.6, Si-Young carries the 9th-highest potential of the full-backs in the K League 1 (top 40%). Defensively he reads as moderate defensive volume (2.09 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.
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 (~18), then tapers with age. At 29, Si-Young sits on 9.9, past its peak and easing. The blue line is Si-Young's projected Rating — 26.6 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.
