Leo Kokubo

Kokubo's current-season form is level with last season (Season 20→22), while his Rating held around 56. That makes this his strongest season for form to date.

Domestic career

Season	Club	Apps	CS	CS%	Match	RTG	Season
2026/27	St. Truiden · 12th	2	0	0%	7.6	56	22
2025/26	St. Truiden · 3rd	35	9	26%	7.26	57	20
2024/25	St. Truiden · 3rd	32	4	13%	6.91	59	5

Domestic-league totals per season. RTG = Field Insider Rating (potential / ceiling); Season = age-blind form that year. 5 youth-team spells in the full career.

Japan · international

Side	Apps	G
Japan U23	10	0

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

Scout report

Solid contributorGoalkeeper

L. Kokubo is a 25-year-old goalkeeper at St. Truiden, rated 55.6 overall by Field Insider's model. In his prime years, he has been an ever-present this season (87.5% of available minutes). Below: strengths, watch-points, market-value outlook and the latest transfer news on Kokubo.

On the season, Kokubo graded 20 for current form (age-blind), on 9 clean sheets across 35 appearances.

Year-on-year, that's broadly in line with last season (Season 20 → 22). Across the 5 seasons we hold, it's his best return yet.

On long-term talent our Rating reads 56. At 25 Kokubo is in his prime years, and a market index of 17.6 reflects that trajectory.

From the career report

Read the full career report →

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

Peak: 2025/26Trending upRemarkably consistentStepped up 2024/25

55.6

Ratingi

a solid contributor and squad regular

20.1

Seasoni

below regular-starter level

87.5%

Minutes

near ever-present

0.11

Def. actions / 90

light defensive volume

Output in context · St. Truiden finished 12th of 18 · a mid-table side

Apps

Clean sheets

26%

CS rate

87.5%

Minutes

9 clean sheets in 35 appearances (26% of games).

Strengths

Availability. On the pitch for 87.5% of available minutes — a dependable presence in the XI.

Watch points

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

Outlook

Rated 55.6 overall — a solid contributor and squad regular. A near ever-present keeper carrying the gloves this season. Approaching peak years; value is still building (price multiplier 2×) with the best seasons likely ahead.

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

Per 90 & availability

Minutes played %87.5%

Available fixtures40 of 40

Goals / 900

Assists / 900

Goal contribution / 900

Defensive actions / 900.114

Player flow

Goal involvements0

Cards / 900.114

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 (~18), then tapers with age. At 25, Kokubo sits on 17.6, at or near its peak. The blue line is Kokubo's projected Rating — 55.6 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 goalkeepers in the Jupiler Pro League with 600+ minutes this season.

Goalkeeping

Clean sheets9

Yellow/red cards

Yellow cards4

Red cards0

Transfer history

St. TruidenJul 2024 – now

Benficauntil Jul 2024

About L. Kokubo

Leo Brian Kokubo is a 25-year-old goalkeeper who plays for St. Truiden, born on January 23, 2001 in Chiba, standing 193 cm tall. He is from Japan. St. Truiden currently sit 12th of 18 in the Jupiler Pro League.

This season

In the current season, L. Kokubo has made 2 appearances with 0 goals and 0 assists across 180 minutes, averaging a 7.6 match rating over his last 2 rated games.

Recent matches

August 14, 2026: 3-3 draw away at Cercle Brugge (90 minutes, 8.6 rating)
August 8, 2026: 1-1 draw at home vs Lommel United (90 minutes, 6.6 rating)

L. Kokubo's next match is on August 30, 2026, when St. Truiden face Antwerp away in the Jupiler Pro League.

Field Insider's view

Field Insider currently rates L. Kokubo at 55.6 with a Season form score of 20.1. See the full scout report for strengths, watch-points and the market-value outlook.

His honours include 6 career titles — among them the AFC U23 Asian Cup and the Super Cup. Full list in the career record.

Career

Across 7 recorded seasons, L. Kokubo has totalled 117 club appearances with 0 goals and 0 assists for 5 different clubs. His busiest campaign came in 2025/26, with 35 appearances for St. Truiden.

L. Kokubo's career has also included time at Benfica.

On the international stage, L. Kokubo has represented Japan U23 — 10 caps in our records.

Transfer news

No transfer news found for this player.