based on the 2025 season · updated 18 Aug 2026
Profile
Season stats
Full career & schedule →Domestic-league season · Matsumoto Yamaga.
Scout report
J. Ninomiya is a 22-year-old central defender at Matsumoto Yamaga, rated 25.7 overall by Field Insider's model, ranking 71st of 267 on scout potential in the J3 League and 1565th of 1772 U-23 players tracked. An emerging talent, he has been a fringe squad member this season (28.9% of available minutes). His defensive output reads 2.36 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Ninomiya.
Judged on this season alone, Ninomiya graded 9 — a workmanlike campaign that ranks 32nd of 61 of the 61 centre-backs in the J3 League, on 3 clean sheets and 2.364 defensive actions per 90.
We hold a single season for Ninomiya, 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 26, top 20% of the 61 centre-backs in the J3 League. At 22 Ninomiya is still climbing toward his ceiling, and a market index of 2.1 reflects that trajectory.
Output in context · Matsumoto Yamaga finished 15th of 20 · a lower-table side
2.36 tackles, blocks & interceptions per 90 — moderate defensive volume, with 3 clean sheets across 11 appearances. Doing that for a lower-table side (15th 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.
Watch points
- Game time. Only 28.9% 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 25.7, Ninomiya carries the 12th-highest potential of the centre-backs in the J3 League of 61 — though on just 11 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (2.36 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 1.9×) with the best seasons likely ahead.
Generated from Field Insider's rating model · AI-written analysis to follow.
Season statistics
Bars = where he ranks among centre-backs in the J3 League with 600+ minutes this season.
Shooting
Passing
Defending
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Transfer news
No transfer news found for this player.
