FairValue

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

Bates

CBScotland · Standard Liège

№ 272539Emerging €964k +0.62

Player dossierPro League

DavidBates

CBCentre-BackDefender

Club
Standard Liège
League
Pro League
Nationality
Scotland
Age
29
Height
193 cm
Foot
Right
Valued
4 Jun 2026

Reading the valuation

The market values Bates at €1.8M. Model A, which never saw Bates during training, estimates €964k: the market value is 87% above that estimate.

That is a factor of ×1.87. 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 €786k, further from the market. Model B is usually further off (typical miss ×2.07): league and club explain much of how the market prices players.

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

▲ +0.62A €964k▲ +0.83B €786k
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
27
Minutes
2,157
Goals
1
Assists
0
Started
24/27
Min / app
80
Cards
3Y 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 Bates…

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 €1.8M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1.8MModel A €964k

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 2,065 defenders

David Bates's percentiles among defenders: Goals per 90 58th, Assists per 90 17th, Minutes, two years 37th, Starts 66th, Minutes, last 365 days 40th, European club minutes 30th58thGoals17thAssists37thMinutes66thStarts40thRecent30thEurope

Dashed ring: the defender median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

89% this player83% defender median66th percentile

18%peer deciles · median line · this player ●100%

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
€13k
Oct 2013
Peak
€2.8M
Oct 2024
Model target
€1.8M
Jun 2026
Valuations
27
7 club changes
Jun 2026€1.8MStandard LiègeValuation the model is trained to reproduce

Jun 2026: €1.8M, Standard Liège. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2013-10-08€13kRaith Rovers FC
2017-02-14€50kRangers FC
2018-03-04€250kRangers FC
2018-08-21€400kHamburger SV
2018-10-16€900kHamburger SV
2019-01-08€2MHamburger SV
2019-06-12€2MHamburger SV
2019-10-17€1.5MSheffield Wednesday
2020-02-27€600kSheffield Wednesday
2020-04-08€475kSheffield Wednesday
2020-10-16€500kCercle Brugge
2021-03-17€700kCercle Brugge
2021-06-07€700kCercle Brugge
2021-12-31€600kAberdeen FC
2022-06-27€450kAberdeen FC
2022-11-04€650kKV Mechelen
2023-06-09€800kKV Mechelen
2023-10-23€600kKV Mechelen
2023-12-19€600kKV Mechelen
2024-03-22€1MKV Mechelen
2024-06-04€2MKV Mechelen
2024-10-02€2.8MStandard Liège
2024-12-11€2.8MStandard Liège
2025-06-12€2.2MStandard Liège
2025-10-01€1.5MStandard Liège
2025-12-10€1.2MStandard Liège
2026-06-04€1.8MStandard Liège

Audit context group-level, not about this player

Audit group
UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
+0.625

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 47% of the 350 Pro League players.

€100k€750k€5M€30M€1.8MSee them in the Explorer →

Defenders, all leagues2,065 players · median €2M

Valued above 48% of the 2,065 defenders.

€20k€200k€2M€20M€1.8MSee them in the Explorer →

Where Bates 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).