Yoshio Koizumi

Koizumi's current-season form is level with last season (Season 35→35), while his Rating held around 41. His peak season for form remains 2021/22 (Season 40).

Domestic career

Season	Club	Apps	G	A	Match	RTG	Season
2027/28	Kashiwa Reysol · 2nd	3	2	0	7.1	41	35
2026/27	Kashiwa Reysol	19	3	4	7.32	—	—
2025/26	Kashiwa Reysol · 2nd	35	7	4	7.34	41	35
2024/25	Urawa · 13th	20	0	2	6.79	36	12
2023/24	Urawa · 4th	24	1	1	6.6	45	19

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

Scout report

Project playerCentre-forward

Y. Koizumi is a 29-year-old centre-forward at Kashiwa Reysol, rated 40.5 overall by Field Insider's model. An experienced operator, he has been an ever-present this season (85.1% of available minutes). He brings 0.34 goal contributions per 90 (0.22 goals, 0.12 assists). Below: strengths, watch-points, market-value outlook and the latest transfer news on Koizumi.

On the season, Koizumi graded 35 for current form (age-blind), on 7 goals and 4 assists in 35 appearances (0.34 involvements per 90).

Year-on-year, that's broadly in line with last season (Season 35 → 35). Over the 6 seasons on record his form has drifted down, peaking in 2021/22.

On long-term talent our Rating reads 41. At 29 Koizumi is in his prime years, and a market index of 8.8 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

40.5

Ratingi

developing / rotation level

Seasoni

developing / rotation level

85.1%

Minutes

near ever-present

0.34

Goal contrib / 90

modest end product

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

Apps

Goals

Assists

G+A

0.2

Goals / app

7 goals in 35 appearances (0.2 per game) for a title-challenging side. He also laid on 4 assists, so the all-round involvement reads 11 goal contributions (0.31 per appearance).

Strengths

Availability. On the pitch for 85.1% of available minutes — a dependable presence in the XI.

Watch points

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

Outlook

Rated 40.5 overall — developing / rotation level. In the final third he profiles as a work-in-progress on end product (0.34 goal contributions 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 %85.1%

Available fixtures38 of 38

Goals / 900.216

Assists / 900.124

Goal contribution / 900.34

Defensive actions / 902.163

Player flow

Goal involvements11

Cards / 900.093

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 (~16), then tapers with age. At 29, Koizumi sits on 8.8, past its peak and easing. The blue line is Koizumi's projected Rating — 40.5 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.

Season statistics

Bars = where he ranks among centre-forwards in the J1 League with 600+ minutes this season.

Shooting

Goals7

Passing

Assists4

Defending

Tackles50

Interceptions17

Blocks3

Yellow/red cards

Yellow cards3

Red cards0

Transfer history

Kashiwa ReysolJan 2025 – now

UrawaJan 2021 – Jan 2025Free

FC Ryukyuuntil Jan 2021

About Y. Koizumi

Yoshio Koizumi is a 29-year-old centre-forward who plays for Kashiwa Reysol, born on October 5, 1996 in Tokyo, standing 172 cm tall. He is from Japan. Kashiwa Reysol currently sit 2nd of 20 in the J1 League.

This season

In the current season, Y. Koizumi has made 3 appearances with 2 goals and 0 assists across 248 minutes, with 1 yellow card.

Y. Koizumi's next match is on August 29, 2026, when Kashiwa Reysol face Shimizu S-pulse away in the J1 League.

Field Insider's view

Field Insider currently rates Y. Koizumi at 40.5 with a Season form score of 35. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 6 career titles — among them the AFC Champions League Elite and the Super Cup. Full list in the career record.

Career

Across 9 recorded seasons, Y. Koizumi has totalled 212 club appearances with 24 goals and 18 assists for 3 different clubs. His busiest campaign came in 2020/21, with 38 appearances for FC Ryukyu.

Y. Koizumi's career has also included time at Urawa and FC Ryukyu.

Transfer news

No transfer news found for this player.