based on the 2026 season · updated 19 Oct 2026
Profile
Season stats
Full career & schedule →Domestic-league season · Kashiwa Reysol.
Performance data · by competition
| Competition | Apps | G | A | Min | Match |
|---|---|---|---|---|---|
 J1 League | 1 | 0 | 0 | 90 | 7 |
Scout report
T. Koga is a 28-year-old central defender at Kashiwa Reysol, rated 36.2 overall by Field Insider's model, ranking 19th of 193 on scout potential in the J1 League. An experienced operator, he has been a rotation option this season (52.6% of available minutes). His defensive output reads 2.8 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 11 — a workmanlike campaign that ranks 31st of 37 of the 37 centre-backs in the J1 League, on 1 clean sheet and 2.8 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 69 → 11). Over the 7 seasons on record his form has drifted down, peaking in 2025/26.
On long-term talent our Rating reads 36, top 6% of the 37 centre-backs in the J1 League. At 28 Koga is in his prime years, and a market index of 5.9 reflects that trajectory.
Past his 2025/26 peak — the recent trend is downward, so buyers are paying for what's left, not what was.
Output in context · Kashiwa Reysol finished 5th of 20 · an upper-table side
2.8 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 10 appearances. Behind an upper-table side (5th 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.
Watch points
- Game time. Only 52.6% 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 36.2, Koga carries the 2nd-highest potential of the centre-backs in the J1 League of 37 — though on just 10 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (2.8 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 centre-backs in the J1 League with 600+ minutes this season.
Shooting
Passing
Possession
Defending
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Transfer news
No transfer news found for this player.
