T. Ko

Ko's current-season form is level with last season (Season 40→42), while his Rating eased 49→41. That makes this his strongest season for form to date.

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	FC Tokyo · 11th	33	2	4	7.07	41	42
2024/25	FC Tokyo · 7th	35	3	2	6.93	49	40
2023/24	Albirex Niigata · 10th	31	1	0	7.02	52	38

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year.

Scout report

Project playerCentral midfielder

T. Ko is a 28-year-old central midfielder at FC Tokyo, rated 41.3 overall by Field Insider's model, ranking 315th of 874 in the J3 League. An experienced operator, he has been an ever-present this season (81.6% of available minutes). His defensive output reads 3.81 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Ko.

Judged on this season alone, Ko graded 42 — a standout campaign that ranks top 1% of the 241 central midfielders in the J3 League, on 2 goals, 4 assists and 3.806 defensive actions per 90.

Year-on-year, that's broadly in line with last season (Season 40 → 42). Across the 3 seasons we hold, it's his best return yet.

On long-term talent our Rating reads 41, top 37% of the 241 central midfielders in the J3 League. At 28 Ko is in his prime years, and a market index of 18.8 reflects that trajectory.

From the career report

Read the full career report →

Ko is operating at his career peak — the 2025/26 level is the level.

Peak: 2025/26Holding levelRemarkably consistent

Current potentialTop 37% central midfielders · J3 League Current seasonTop 1% central midfielders · J3 League2nd-best central midfielder in the J3 League315th in the J3 League · potential89th-highest potential central midfielder in the J3 League

41.3

Ratingi

89th of 241 central midfielders

42.1

Seasoni

developing / rotation level

81.6%

Minutes

near ever-present

3.81

Def. actions / 90

solid defensive volume

Output in context · FC Tokyo finished 11th of 20 · a mid-table side

3.81

Def. / 90

Tackles

Interceptions

Clean sheets

3.81 tackles, blocks & interceptions per 90 — solid defensive volume, with 9 clean sheets across 33 appearances. Going forward he chipped in 2 goals and 4 assists — a useful bonus from the back.

Strengths

Availability. On the pitch for 81.6% of available minutes — a dependable presence in the XI.
Attacking threat. Chips in from deep: 0.19 goal involvements per 90, useful for a central midfielder.
Defensive volume. 3.81 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

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

Outlook

With a Rating of 41.3, Ko carries the 89th-highest potential of the central midfielders in the J3 League (top 37%). Defensively he reads as solid defensive volume (3.81 tackles, blocks & interceptions per 90). Experienced and reliable, but the value curve is easing (1.2× now → 0.9× projected in three years).

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

Per 90 & availability

Minutes played %81.6%

Available fixtures38 of 38

Goals / 900.065

Assists / 900.129

Goal contribution / 900.194

Defensive actions / 903.806

Player flow

Goal involvements6

Shot conversion %28.6

Shot accuracy %28

Pass accuracy %40

Dribble success %63.6

Cards / 900.032

Foul involvement / 902.065

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 (~31), then tapers with age. At 28, Ko sits on 18.8, past its peak and easing. The blue line is Ko's projected Rating — 41.3 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.