Field Insider
GoalkeeperJapanJ1 League

Ryosuke Kojima

Squad depthKashiwa Reysol · 29 yrsRotation
41.5
±0%
Ratingi
2.7
96.2%
Seasoni
4.5
Valuei

based on the 2026 season · updated 19 Oct 2026

Profile

Full nameRyosuke Kojima
PositionGoalkeeper
NationalityJapan
Age29
Date of birth30 Jan 1997
BirthplaceToyota
Height183 cm
Shirt number#25
ClubKashiwa Reysol
More about R. Kojima →
Goalkeeper

Season stats

Full career & schedule →
7
Appearances
1
Clean sheets
14%
CS rate
share of apps kept clean
630
Minutes

Domestic-league season · Kashiwa Reysol.

Performance data · by competition

CompetitionAppsMinMatch
J1 League1906.6

Scout report

Squad depthGoalkeeper

R. Kojima is a 29-year-old goalkeeper at Kashiwa Reysol, rated 30.2 overall by Field Insider's model, ranking 63rd of 193 on scout potential in the J1 League. An experienced operator, he has been a rotation option this season (36.8% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Kojima.

Judged on this season alone, Kojima graded 3 — a workmanlike campaign that ranks 23rd of 28 of the 28 goalkeepers in the J1 League, on 1 clean sheet across 7 appearances.

Year-on-year, that's a drop on last season (Season 72 → 3). Over the 4 seasons on record his form has drifted down, peaking in 2025/26.

On long-term talent our Rating reads 30, top 22% of the 28 goalkeepers in the J1 League. At 29 Kojima is in his prime years, and a market index of 4.5 reflects that trajectory.

From the career report
Read the full career report →

A career still climbing — Kojima is at his peak right now, and the curve hasn't flattened.

Peak: 2025/26Trending upBreakout: 2025/26Streaky
Current potential6th of 28 goalkeepers · J1 League · 7 appsCurrent season23rd of 28 goalkeepers · J1 League · 7 apps23rd-best goalkeeper in the J1 League63rd in the J1 League · potential6th-highest potential goalkeeper in the J1 League
30.2
Ratingi
6th of 28 goalkeepers
2.7
Seasoni
below regular-starter level
36.8%
Minutes
rotation minutes
0
Def. actions / 90
light defensive volume

Output in context · Kashiwa Reysol finished 5th of 20 · an upper-table side

7
Apps
1
Clean sheets
14%
CS rate
36.8%
Minutes

1 clean sheet in 7 appearances (14% of games). Playing behind an upper-table side (5th of 20) means a more protected goal, so the read is about command and distribution as much as raw shut-outs.

Watch points

  • Game time. Only 36.8% 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 30.2, Kojima carries the 6th-highest potential of the goalkeepers in the J1 League of 28 — though on just 7 appearances this season, so the standing rests on a small sample. A rotation minutes keeper carrying the gloves this season. Experienced and reliable, but the value curve is easing (1.1× now → 0.8× projected in three years).

Generated from Field Insider's rating model · AI-written analysis to follow.

Season statistics

Bars = where he ranks among goalkeepers in the J1 League with 600+ minutes this season.

Goalkeeping

Clean sheets1
Saves13
Save rate61.9%
Goals conceded8
Penalties conceded1—

Distribution

Passes209
Pass accuracy87%

Yellow/red cards

Yellow cards0
Red cards0

Transfer news

No transfer news found for this player.