K. Matsubara

Matsubara's current-season form is down 60% on last season (Season 15→6), while his Rating eased 45→23. His peak season for form remains 2024/25 (Season 15).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	Jubilo Iwata · 5th	13	0	0	—	23	6
2024/25	Jubilo Iwata · 18th	35	3	5	6.72	45	15
2023/24	Jubilo Iwata	40	6	0	—	—	—
2022/23	Jubilo Iwata · 18th	8	0	1	6.5	40	2
2021/22	St. Truiden · 2nd	7	0	1	6.81	49	5

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 6 earlier seasons in the full career.

Scout report

Squad depthCentral defender

K. Matsubara is a 29-year-old central defender at Jubilo Iwata, rated 23.1 overall by Field Insider's model, ranking 130th of 200 on scout potential in the J2 League. An experienced operator, he has been a fringe squad member this season (28.3% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Matsubara.

Judged on this season alone, Matsubara graded 6 — a workmanlike campaign that ranks 36th of 70 of the 70 centre-backs in the J2 League, on 3 clean sheets and 0 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 15 → 6). Over the 5 seasons on record his form has held fairly steady, peaking in 2024/25.

On long-term talent our Rating reads 23, 46th of 70 of the 70 centre-backs in the J2 League. At 29 Matsubara is in his prime years, and a market index of 2.3 reflects that trajectory.

From the career report

Read the full career report →

Below his 2024/25 peak but holding a solid level — the platform for a return is there.

Peak: 2024/25Holding levelRemarkably consistent

Current potential46th of 70 centre-backs · J2 League · 13 apps Current season36th of 70 centre-backs · J2 League · 13 apps36th-best centre-back in the J2 League130th in the J2 League · potential46th-highest potential centre-back in the J2 League

23.1

Ratingi

46th of 70 centre-backs

6.2

Seasoni

below regular-starter level

28.3%

Minutes

limited game time

Def. actions / 90

light defensive volume

Output in context · Jubilo Iwata finished 5th of 20 · an upper-table side

Def. / 90

—

Tackles

—

Interceptions

Clean sheets

0 tackles, blocks & interceptions per 90 — light defensive volume, with 3 clean sheets across 13 appearances. Behind an upper-table side (5th 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.

Watch points

Game time. Only 28.3% 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 23.1, Matsubara carries the 46th-highest potential of the centre-backs in the J2 League of 70 — though on just 13 appearances this season, so the standing rests on a small sample. Defensively he reads as light defensive volume (0 tackles, blocks & interceptions per 90). 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.

Per 90 & availability

Minutes played %28.3%

Available fixtures39 of 39

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 900

Player flow

Goal involvements0

Cards / 900.181

Season-by-season progression

Rating (potential)Season (form)

Value & potential by age

Market valueRating

Solid = now · dashed = projected

The gold line is market value — an index (not €) blending rating, age and league. It climbs through the early 20s, peaks around ages 23–27 (~4), then tapers with age. At 29, Matsubara sits on 2.3, past its peak and easing. The blue line is Matsubara's projected Rating — 23.1 today — recomputed at each age, so it follows the same rise-and-fall as a career matures and declines. Solid = up to today; dashed = projected.