K. Funaki

Funaki's current-season form is down 69% on last season (Season 26→8), while his Rating eased 48→32. His peak season for form remains 2024/25 (Season 26).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2025/26	Cerezo Osaka · 10th	15	0	0	6.51	32	8
2024/25	Cerezo Osaka · 10th	30	1	0	6.79	48	26
2023/24	Cerezo Osaka · 9th	23	0	1	6.79	48	18
2023/24	Albirex Niigata	22	0	1	6.79	—	—
2022/23	Cerezo Osaka · 5th	14	2	0	6.92	48	9
2021/22	Sagamihara	17	0	0	—	—	—

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 4 earlier seasons and 2 youth-team spells in the full career.

Japan · international

Side	Apps	G
Japan U22	3	0
Japan U20	2	0

Career caps & goals — tournament breakdown in the full career.

Scout report

Squad depthCentral defender

K. Funaki is a 28-year-old central defender at Cerezo Osaka, rated 32.3 overall by Field Insider's model, ranking 208th of 377 on scout potential in the J1 League. An experienced operator, he has been a fringe squad member this season (30.4% of available minutes). His defensive output reads 2.51 tackles, blocks and interceptions per 90. Below: strengths, watch-points, market-value outlook and the latest transfer news on Funaki.

Judged on this season alone, Funaki graded 8 — a workmanlike campaign that ranks 58th of 64 of the 64 centre-backs in the J1 League, on 2 clean sheets and 2.51 defensive actions per 90.

Year-on-year, that's a drop on last season (Season 26 → 8). Over the 4 seasons on record his form has held fairly steady, peaking in 2024/25.

On long-term talent our Rating reads 32, 33rd of 64 of the 64 centre-backs in the J1 League. At 28 Funaki is in his prime years, and a market index of 5.3 reflects that trajectory.

From the career report

Read the full career report →

Past his 2024/25 peak — the recent trend is downward, so buyers are paying for what's left, not what was.

Peak: 2024/25Trending down

Current potential33rd of 64 centre-backs · J1 League Current season58th of 64 centre-backs · J1 League58th-best centre-back in the J1 League208th in the J1 League · potential33rd-highest potential centre-back in the J1 League

32.3

Ratingi

33rd of 64 centre-backs

7.5

Seasoni

below regular-starter level

30.4%

Minutes

limited game time

2.51

Def. actions / 90

moderate defensive volume

Output in context · Cerezo Osaka finished 10th of 20 · a mid-table side

2.51

Def. / 90

Tackles

Interceptions

Clean sheets

2.51 tackles, blocks & interceptions per 90 — moderate defensive volume, with 2 clean sheets across 15 appearances.

Watch points

Game time. Only 30.4% 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 32.3, Funaki carries the 33rd-highest potential of the centre-backs in the J1 League of 64. Defensively he reads as moderate defensive volume (2.51 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 %30.4%

Available fixtures38 of 38

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 902.51

Player flow

Goal involvements0

Shot conversion %0

Shot accuracy %33.3

Cards / 900.087

Foul involvement / 900.865

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 (~9), then tapers with age. At 28, Funaki sits on 5.3, past its peak and easing. The blue line is Funaki's projected Rating — 32.3 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.