Domestic-league season · Kochi United.
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 J3 League | 22 | 2 | 3 | 1979 | 6.76 |
 J-League Cup | 1 | 0 | 0 | 52 | 6.62 |
S. Kozuki is a 26-year-old full-back at Kochi United, rated 44.6 overall by Field Insider's model, ranking 216th of 874 in the J1 League. In his prime years, he has been a rotation option this season (57.9% of available minutes). His defensive output reads 1.91 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Kozuki.
Judged on this season alone, Kozuki graded 16 — a workmanlike campaign that ranks 51st of 79 of the 79 full-backs in the J1 League, on 5 clean sheets and 1.91 defensive actions per 90.
We hold a single season for Kozuki, so there's no year-on-year comparison to draw yet — the read above is this campaign only.
On long-term talent our Rating reads 45, top 30% of the 79 full-backs in the J1 League. At 26 Kozuki is in his prime years, and a market index of 33.9 reflects that trajectory.
1.91 tackles, blocks & interceptions per 90 — light defensive volume, with 5 clean sheets across 22 appearances. Doing that for a relegation-threatened side (18th of 20) is harder than the bare numbers suggest: a back line under more pressure has to defend more often and protects fewer leads, so the volume — and any clean sheets — carry real weight. Going forward he chipped in 2 goals and 3 assists — a useful bonus from the back.
With a Rating of 44.6, Kozuki carries the 23rd-highest potential of the full-backs in the J1 League (top 30%), and he is posting that for a relegation-threatened side (Kochi United finished 18th of 20) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. Defensively he reads as light defensive volume (1.91 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.
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 (~34), then tapers with age. At 26, Kozuki sits on 33.9, at or near its peak. The blue line is Kozuki's projected Rating — 44.6 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.
