T. Koga

Koga's current-season form is up 188% on last season (Season 24→69), while his Rating eased 52→50. That makes this his strongest season for form to date.

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	Kashiwa Reysol · 2nd	38	0	0	7.29	50	69
2024/25	Kashiwa Reysol · 17th	37	1	0	6.84	52	24
2023/24	Kashiwa Reysol · 17th	33	0	1	7	53	36
2022/23	Kashiwa Reysol · 7th	32	0	0	6.88	57	40
2021/22	Kashiwa Reysol · 15th	37	0	0	6.78	56	34
2020/21	Kashiwa Reysol · 7th	33	0	2	6.89	59	42

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

Japan · international

Competition	Apps	G
EAFF E-1 Football Championship	2	0

Caps & goals this season.

Scout report

Solid contributorCentral defender

T. Koga is a 27-year-old central defender at Kashiwa Reysol, rated 49.8 overall by Field Insider's model. In his prime years, he has been an ever-present this season (100% of available minutes). His defensive output reads 3.76 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Koga.

On the season, Koga graded 69 for current form (age-blind), on 19 clean sheets and 3.763 defensive actions per 90.

Year-on-year, that's a clear step up on last season (Season 24 → 69). Across the 6 seasons we hold, it's his best return yet.

On long-term talent our Rating reads 50. At 27 Koga is in his prime years, and a market index of 37.8 reflects that trajectory.

From the career report

Read the full career report →

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

Peak: 2025/26Trending upBreakout: 2025/26

49.8

Ratingi

a solid contributor and squad regular

69.2

Seasoni

a strong, regular top-tier starter

100%

Minutes

near ever-present

3.76

Def. actions / 90

solid defensive volume

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

3.76

Def. / 90

Tackles

Interceptions

Clean sheets

3.76 tackles, blocks & interceptions per 90 — solid defensive volume, with 19 clean sheets across 38 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.

Strengths

Availability. On the pitch for 100% of available minutes — a dependable presence in the XI.
Defensive volume. 3.76 tackles, blocks & interceptions per 90 — does the unseen work.

Watch points

Few red flags. No obvious weaknesses in the current-season profile — consistency is the next test.

Outlook

Rated 49.8 overall — a solid contributor and squad regular. Defensively he reads as solid defensive volume (3.76 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.

Per 90 & availability

Minutes played %100%

Available fixtures38 of 38

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 903.763

Player flow

Goal involvements0

Pass accuracy %81

Dribble success %80

Cards / 900.053

Foul involvement / 900.947

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 (~38), then tapers with age. At 27, Koga sits on 37.8, at or near its peak. The blue line is Koga's projected Rating — 49.8 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.