Field Insider
Centre-backJapanJ3 League

Koutaro Yamahara

Squad depth★ Standout performerEhime FC · 26 yrsStarter
33.1
Ratingi
3.4
Seasoni
2.1
Valuei

ratings updated 11 Oct 2026

Profile

Full nameKoutaro Yamahara
PositionCentre-back
NationalityJapan
Age26
Date of birth19 Sept 2000
BirthplaceSaitama
Height182 cm
ClubEhime FC
More about K. Yamahara →
Centre-back

Season stats

Full career & schedule →
6
Appearances
1
Goals
0
Assists
467
Minutes

Domestic-league season · Ehime FC.

Scout report

★ Standout performer

All J3 League standouts →

One of the biggest game-time risers in the J3 League: on the pitch for 86% of Ehime FC's available minutes this season, up from 14% last year — a bench-to-starter jump the ratings will catch up with at the next checkpoint.

Squad depthCentral defender

K. Yamahara is a 26-year-old central defender at Ehime FC, rated 24.6 overall by Field Insider's model. In his prime years, he has been a fringe squad member this season (27.3% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Yamahara.

On the season, Yamahara graded 3 for current form (age-blind), on 1 clean sheet and 0 defensive actions per 90.

We hold a single season for Yamahara, 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. At 26 Yamahara is in his prime years, and a market index of 2.1 reflects that trajectory.

24.6
Ratingi
below regular-starter level
3.4
Seasoni
below regular-starter level
27.3%
Minutes
limited game time
0
Def. actions / 90
light defensive volume

Output in context · Ehime FC finished 2nd of 20 · a title-challenging side

6
Apps
0
Def. / 90
—
Tackles
—
Interceptions
1
Clean sheets

0 tackles, blocks & interceptions per 90 — light defensive volume, with 1 clean sheet across 6 appearances. Behind a title-challenging side (2nd 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.

Strengths

  • Attacking threat. Chips in from deep: 0.19 goal involvements per 90, useful for a central defender.

Watch points

  • Game time. Only 27.3% of available minutes — needs a settled run to prove the level.
  • Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 24.6 overall — below regular-starter level. Defensively he reads as light defensive volume (0 tackles, blocks & interceptions per 90). 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 centre-backs in the J3 League with 600+ minutes this season.

Shooting

Goals1

Passing

Assists0

Yellow/red cards

Yellow cards0
Red cards0

Transfer news

No transfer news found for this player.