
based on the 2025 season · updated 18 Aug 2026
Profile
Season stats
Full career & schedule →Domestic-league season · Gainare Tottori.
Scout report
R. Koma is a 26-year-old goalkeeper at Gainare Tottori, rated 24.9 overall by Field Insider's model, ranking 86th of 267 on scout potential in the J3 League. In his prime years, he has been a rotation option this season (55.3% of available minutes). His defensive output reads 1.24 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Koma.
Judged on this season alone, Koma graded 13 — a strong campaign that ranks top 20% of the 20 goalkeepers in the J3 League, on 6 clean sheets across 21 appearances.
We hold a single season for Koma, 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 25, 10th of 20 of the 20 goalkeepers in the J3 League. At 26 Koma is in his prime years, and a market index of 2.2 reflects that trajectory.
Output in context · Gainare Tottori finished 11th of 20 · a mid-table side
6 clean sheets in 21 appearances (29% of games).
Watch points
- Game time. Only 55.3% 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 24.9, Koma carries the 10th-highest potential of the goalkeepers in the J3 League of 20. A rotation minutes keeper carrying the gloves this season. In the prime window — at or near peak market value, so the next two seasons are the ones to cash in or build around.
Generated from Field Insider's rating model · AI-written analysis to follow.
Season statistics
Bars = where he ranks among goalkeepers in the J3 League with 600+ minutes this season.
Goalkeeping
Yellow/red cards
Transfer news
No transfer news found for this player.






