Field Insider

Tomoya Koyamatsu

Experienced headNagoya Grampus · 31 yrsFringe player

based on the 2025 season · updated 22 Aug 2026

Profile

Full nameTomoya Koyamatsu
PositionCentral midfielder
NationalityJapan
Age31
Date of birth24 Apr 1995
BirthplaceKyoto
Height171 cm
Shirt number#58
ClubNagoya Grampus
Central midfielder
3
Appearances
0
Goals
0
Assists
70
Minutes

Domestic-league season · Nagoya Grampus.

Scout report

Experienced headCreative Central midfielder

T. Koyamatsu is a 31-year-old central midfielder at Kashiwa Reysol, enjoying a standout season — 3 goals and 10 assists in 37 appearances, a Season grade of 44. On long-term scout potential he's rated 30.4. A seasoned veteran, he has been a regular starter (78.5% of available minutes). His defensive output reads 1.51 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Koyamatsu.

On the season, Koyamatsu graded 44 for current form (age-blind), on 3 goals, 10 assists and 1.509 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 35 → 35). Over the 7 seasons on record his form has held fairly steady, peaking in 2021/22.

On long-term talent our Rating reads 30. At 31 Koyamatsu is into the veteran stage, where the age curve weighs on the projection, and a market index of 6.2 reflects that trajectory.

From the career report
Read the full career report →

Below his 2021/22 peak but holding a solid level — the platform for a return is there.

Peak: 2021/22Trending upBreakout: 2025/26
30.4
Ratingi
below regular-starter level
43.6
Seasoni
developing / rotation level
78.5%
Minutes
a regular starter
1.51
Def. actions / 90
light defensive volume

Output in context · Kashiwa Reysol finished 2nd of 20 · a title-challenging side

37
Apps
1.51
Def. / 90
29
Tackles
14
Interceptions
15
Clean sheets

1.51 tackles, blocks & interceptions per 90 — light defensive volume, with 15 clean sheets across 37 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 3 goals and 10 assists — a useful bonus from the back.

Strengths

  • Availability. On the pitch for 78.5% of available minutes — a dependable presence in the XI.
  • Attacking threat. Chips in from deep: 0.44 goal involvements per 90, useful for a central midfielder.
  • Creativity. 0.34 assists per 90 — a genuine creative outlet.

Watch points

  • Defensive numbers. Modest 1.51 defensive actions per 90 for the position.
  • Age curve. At 31, both level and resale value are on the downslope.
  • Level. Rates below a nailed-on top-tier starter on our model.

Outlook

Rated 30.4 overall — below regular-starter level. Defensively he reads as light defensive volume (1.51 tackles, blocks & interceptions per 90), with a bit more on the ball than most in the role. Veteran phase — a short-term, lower-fee proposition as both level and value decline (0.9× and falling).

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

Goals3

Passing

Assists10

Defending

Tackles29
Interceptions14
Blocks2

Yellow/red cards

Yellow cards1
Red cards0

Transfer news

No transfer news found for this player.