ratings updated 11 Oct 2026
Profile
Season stats
Full career & schedule →Domestic-league season · Shonan Bellmare.
Also this season
Earlier this season at Shonan Bellmare — J-League Cup: 2 apps, 0g 0a, 193 min
The headline Season rating covers his time at Renofa Yamaguchi; availability counts only fixtures while in this squad.
Scout report
K. Oiwa is a 37-year-old central defender at Renofa Yamaguchi, rated 7.9 overall by Field Insider's model, ranking 238th of 260 on scout potential in the J3 League. A seasoned veteran, he has been a rotation option this season (38.8% of available minutes). His defensive output reads 1.77 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Oiwa.
Judged on this season alone, Oiwa graded 6 — a workmanlike campaign that ranks 56th of 57 of the 57 centre-backs in the J3 League, on 1 clean sheet and 1.765 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 14 → 3). Over the 6 seasons on record his form has drifted down, peaking in 2021/22.
On long-term talent our Rating reads 8, 52nd of 57 of the 57 centre-backs in the J3 League. At 37 Oiwa is into the veteran stage, where the age curve weighs on the projection, and a market index of 0.2 reflects that trajectory.
Past his 2021/22 peak — the recent trend is downward, so buyers are paying for what's left, not what was.
Output in context · Renofa Yamaguchi finished 3rd of 20 · an upper-table side
1.77 tackles, blocks & interceptions per 90 — light defensive volume, with 1 clean sheet across 15 appearances. Behind an upper-table side (3rd of 20) the side controls more games, so the defensive load is lighter — the value sits as much in composure and ball progression as in raw volume. Going forward he chipped in 1 goal and 0 assists — a useful bonus from the back.
Watch points
- Game time. Only 38.8% of available minutes — needs a settled run to prove the level.
- Defensive numbers. Modest 1.77 defensive actions per 90 for the position.
- Age curve. At 37, both level and resale value are on the downslope.
- Level. Rates below a nailed-on top-tier starter on our model.
Outlook
With a Rating of 7.9, Oiwa carries the 52nd-highest potential of the centre-backs in the J3 League of 57 — though on just 15 appearances this season, so the standing rests on a small sample. Defensively he reads as light defensive volume (1.77 tackles, blocks & interceptions per 90). Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.5× and falling).
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
Possession
Defending
Yellow/red cards
Transfer news
No transfer news found for this player.
