Field Insider
GoalkeeperJapanJ3 League

Ryota Koma

Project playerMatsumoto Yamaga · 26 yrsStarter
24.9
Ratingi
21.1
Seasoni
3
Valuei

ratings updated 11 Oct 2026

Profile

Full nameRyota Koma
PositionGoalkeeper
NationalityJapan
Age26
Date of birth26 Jul 2000
Height180 cm
Shirt number#31
ClubMatsumoto Yamaga
More about R. Koma →
Goalkeeper

Season stats

Full career & schedule →
21
Appearances
6
Clean sheets
29%
CS rate
share of apps kept clean
1890
Minutes

Domestic-league season · Gainare Tottori.

Also this season

Earlier this season at Gainare Tottori — J-League Cup: 1 apps, 0g 0a, 90 min

The headline Season rating covers his time at Matsumoto Yamaga; availability counts only fixtures while in this squad.

Scout report

Project playerGoalkeeper

R. Koma is a 26-year-old goalkeeper at Matsumoto Yamaga, rated 28.6 overall by Field Insider's model, ranking 84th of 260 on scout potential in the J3 League. In his prime years, he has been an ever-present this season (100% 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 21 — a strong campaign that ranks top 17% of the 18 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 29, 10th of 18 of the 18 goalkeepers in the J3 League. At 26 Koma is in his prime years, and a market index of 3 reflects that trajectory.

Current potential10th of 18 goalkeepers · J3 LeagueCurrent seasonTop 17% goalkeepers · J3 League3rd-best goalkeeper in the J3 League84th in the J3 League · potential10th-highest potential goalkeeper in the J3 League
28.6
Ratingi
10th of 18 goalkeepers
21.1
Seasoni
below regular-starter level
100%
Minutes
near ever-present
1.24
Def. actions / 90
light defensive volume

Output in context · Matsumoto Yamaga finished 15th of 20 · a lower-table side

21
Apps
6
Clean sheets
29%
CS rate
100%
Minutes

6 clean sheets in 21 appearances (29% of games). Keeping that many behind a lower-table side (15th of 20) — a side that concedes more — points to a busy, productive season between the posts.

Strengths

  • Availability. On the pitch for 100% of available minutes — a dependable presence in the XI.

Watch points

  • Level. Rates below a nailed-on top-tier starter on our model.

Outlook

With a Rating of 28.6, Koma carries the 10th-highest potential of the goalkeepers in the J3 League of 18, and he is posting that for a lower-table side (Matsumoto Yamaga finished 15th of 20) — individual numbers are harder to earn on a struggling team, so his underlying level likely sits a touch above the ranking. A near ever-present 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

Clean sheets6

Distribution

Pass accuracy68%

Yellow/red cards

Yellow cards1
Red cards0

Transfer news

No transfer news found for this player.