FairValue

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

Butland

GKEngland · Rangers FC

№ 128899Emerging €853k +0.56

Player dossierPremiership

JackButland

GKGoalkeeperGoalkeeper

Club
Rangers FC
League
Premiership
Nationality
England
Age
33
Height
196 cm
Foot
Right
Valued
20 May 2026

Reading the valuation

The market values Butland at €1.5M. Model A, which never saw Butland during training, estimates €853k: the market value is 76% above that estimate.

That is a factor of ×1.76. 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 €3.6M, 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.

▲ +0.56A €853k▼ −0.87B €3.6M
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
87
Minutes
7,890
Started
87/87
Min / app
91
Cards
4Y 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 Butland…

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 €1.5M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1.5MModel A €853k

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 485 goalkeepers

Jack Butland's percentiles among goalkeepers: Minutes, two years 97th, Starts 62nd, Minutes, last 365 days 98th, European club minutes 94th97thMinutes62ndStarts98thRecent94thEurope

Dashed ring: the goalkeeper median (50th percentile)

Minutes, last 365 days

Club minutes in the final year of the window: recent involvement, or the absence of it.

4,350 this player1,560 goalkeeper median98th percentile

0peer deciles · median line · this player ●4,970

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
€50k
Aug 2011
Peak
€22M
May 2018
Model target
€1.5M
May 2026
Valuations
34
4 club changes
May 2026€1.5MRangers FCValuation the model is trained to reproduce

May 2026: €1.5M, Rangers FC. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2011-08-15€50kBirmingham City
2012-02-07€250kBirmingham City
2012-06-22€1MBirmingham City
2013-03-02€5MBirmingham City
2013-07-02€5MStoke City
2014-01-15€5MStoke City
2014-08-12€5MStoke City
2015-02-12€3.5MStoke City
2015-07-01€4MStoke City
2016-02-09€9MStoke City
2016-08-01€9MStoke City
2017-02-20€9MStoke City
2017-06-28€15MStoke City
2018-01-02€18MStoke City
2018-05-28€22MStoke City
2019-02-27€18MStoke City
2019-06-28€15MStoke City
2019-10-16€12MStoke City
2020-02-27€8MStoke City
2020-04-08€6.5MStoke City
2020-10-15€3.5MStoke City
2021-03-18€3MCrystal Palace
2021-06-08€2MCrystal Palace
2021-12-23€2MCrystal Palace
2022-06-15€1.8MCrystal Palace
2022-11-03€1.5MCrystal Palace
2023-06-20€1.5MManchester United
2023-09-22€2MRangers FC
2023-12-05€3MRangers FC
2024-05-30€3MRangers FC
2024-12-03€3MRangers FC
2025-06-17€1.5MRangers FC
2025-12-10€1.5MRangers FC
2026-05-20€1.5MRangers FC

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
+0.564

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 →

Premiership311 players · median €400k

Valued above 78% of the 311 Premiership players.

€20k€150k€1M€7.5M€1.5MSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 55% of the 485 goalkeepers.

€20k€200k€2M€20M€1.5MSee them in the Explorer →

Where Butland 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).