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 | 81 | 7.2 |
Scout report
K. Kumasaka is a 25-year-old central midfielder at Kashiwa Reysol, rated 45.8 overall by Field Insider's model, ranking 22nd of 193 on scout potential in the J1 League. In his prime years, he has been a rotation option this season (35.8% of available minutes). His defensive output reads 3.38 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Kumasaka.
Judged on this season alone, Kumasaka graded 9 — a workmanlike campaign that ranks 34th of 41 of the 41 central midfielders in the J1 League, on 0 goals, 0 assists and 3.377 defensive actions per 90.
Year-on-year, that's a drop on last season (Season 16 → 9). Over the 3 seasons on record his form has trended upward, peaking in 2025/26.
On long-term talent our Rating reads 46, top 15% of the 41 central midfielders in the J1 League. At 25 Kumasaka is in his prime years, and a market index of 12.5 reflects that trajectory.
Below his 2025/26 peak but holding a solid level — the platform for a return is there.
Output in context · Kashiwa Reysol finished 5th of 20 · an upper-table side
3.38 tackles, blocks & interceptions per 90 — moderate defensive volume, with 1 clean sheet across 8 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 35.8% 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 45.8, Kumasaka carries the 6th-highest potential of the central midfielders in the J1 League of 41 — though on just 8 appearances this season, so the standing rests on a small sample. Defensively he reads as moderate defensive volume (3.38 tackles, blocks & interceptions per 90). Approaching peak years; value is still building (price multiplier 2×) 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 central midfielders 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.
