FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Kaito

Matsuzawa

LWJapan · Sint-Truidense VV

№ 1124661Emerging €1.3M −0.46

Player dossierPro League

KaitoMatsuzawa

LWLeft WingerAttack

Club
Sint-Truidense VV
League
Pro League
Nationality
Japan
Age
25
Height
176 cm
Foot
–
Valued
4 Jun 2026

Reading the valuation

The market values Matsuzawa at €800k. Model A, which never saw Matsuzawa during training, estimates €1.3M: the market value is 37% below that estimate.

That is a factor of ×1.59. Model A's typical held-out miss is ×1.50 either way, so this gap is larger than its usual error.

Without league and club, Model B estimates €810k, closer to the market here, although it is usually further off (typical miss ×2.07).

A gap describes the model's arithmetic for this player's inputs, not what the player is worth.

▼ −0.46A €1.3M▼ −0.01B €810k
Pitch length is a log value scale fitted to this player's figures. ● observed · ◇ Model A · dashed ◇ Model B · each arc is a residual, log(observed) − log(estimate).
Apps
32
Minutes
690
Goals
2
Assists
2
Started
3/32
Min / app
22
Cards
1Y 0R

Club matches, two years to the valuation date

The Valuation Journey

What moves Model A

Asking the prediction API to explain Model A for Matsuzawa…

SHAP describes the model's arithmetic for this player's inputs, not what causes market value. Model B can be explained only by the live service; Model A also has a published explanation for the research players.

Model A vs Model B against the observed €800k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €800kModel A €1.3M

Asking the prediction API…

Held-out estimates come from cross-validation, with this player outside the training data: the honest comparison. Served models were refitted on every player, this one included, so they sit closer to the market. Shaded band: Model A's typical miss (×1.50 either way).

Player traitspercentiles vs 1,583 attackers

Kaito Matsuzawa's percentiles among attackers: Goals per 90 49th, Assists per 90 85th, Minutes, two years 9th, Starts 1st, Minutes, last 365 days 24th, European club minutes 28th49thGoals85thAssists9thMinutes1stStarts24thRecent28thEurope

Dashed ring: the attacker median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.26 this player0.15 attacker median85th percentile

0.00peer deciles · median line · this player ●0.73

No passing, progression or defensive actions exist in the dataset, so no trait claims to measure them.

Valuation history every Transfermarkt valuation on record

First valuation
€175k
Feb 2024
Peak
€800k
Jun 2026
Model target
€800k
Jun 2026
Valuations
6
1 club change
Jun 2026€800kSint-Truidense VVValuation the model is trained to reproduce

Jun 2026: €800k, Sint-Truidense VV. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2024-02-22€175kV-Varen Nagasaki
2024-06-12€250kV-Varen Nagasaki
2024-12-12€300kV-Varen Nagasaki
2025-06-26€275kV-Varen Nagasaki
2025-12-10€600kSint-Truidense VV
2026-06-04€800kSint-Truidense VV

Audit context group-level, not about this player

Audit group
non-UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
−0.461

The group comes from first-listed citizenship and is never a model input. Across the population, non-UEFA players' market values sit about 10% above Model A's held-out estimates, relative to UEFA players in the same leagues. One player's residual says nothing about that pattern (typical miss ×1.50), and none of it is evidence of discrimination: the target may itself be biased. Open the Fairness Audit

In context observed value among comparable players in this build

All players in the Terminal →

Pro League350 players · median €1.8M

Valued above 22% of the 350 Pro League players.

€100k€750k€5M€30M€800kSee them in the Explorer →

Attackers, all leagues1,583 players · median €2.5M

Valued above 25% of the 1,583 attackers.

€20k€300k€5M€75M€800kSee them in the Explorer →

Where Matsuzawa appears

Watchlists and the comparison tray are kept in this browser only.

Near this valuation closest observed values: same league, then same position

Counts and ranks of observed Transfermarkt values only; model errors are never ranked here. Full player export: Every player in the modelling population (D-011).