based on the 2025 season · updated 18 Aug 2026
Profile
Season stats
Full career & schedule →Domestic-league season · Parceiro Nagano.
Scout report
S. Koga is a 28-year-old central midfielder at Parceiro Nagano, rated 18 overall by Field Insider's model, ranking 136th of 261 on scout potential in the J3 League. An experienced operator, he has been a rotation option this season (41.4% of available minutes). His defensive output reads 3.18 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Koga.
Judged on this season alone, Koga graded 15 — an excellent campaign that ranks top 11% of the 100 central midfielders in the J3 League, on 1 goal, 1 assist and 3.176 defensive actions per 90.
We hold a single season for Koga, 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 18, 49th of 100 of the 100 central midfielders in the J3 League. At 28 Koga is in his prime years, and a market index of 1.3 reflects that trajectory.
Output in context · Parceiro Nagano finished 19th of 20 · a relegation-threatened side
3.18 tackles, blocks & interceptions per 90 — moderate defensive volume, with 4 clean sheets across 19 appearances. Doing that for a relegation-threatened side (19th 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 1 goal and 1 assist — a useful bonus from the back.
Watch points
- Game time. Only 41.4% of available minutes — needs a settled run to prove the level.
- Level. Rates below a nailed-on top-tier starter on our model.
Outlook
With a Rating of 18, Koga carries the 49th-highest potential of the central midfielders in the J3 League of 100, and he is posting that for a relegation-threatened side (Parceiro Nagano finished 19th 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 moderate defensive volume (3.18 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.
Season statistics
Bars = where he ranks among central midfielders in the J3 League with 600+ minutes this season.
Shooting
Passing
Defending
Yellow/red cards
Transfer news
No transfer news found for this player.
