FairValue

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

Dennis

GKEngland · AFC Bournemouth

№ 582078Emerging €2M −1.74

Player dossierPremier League

WillDennis

GKGoalkeeperGoalkeeper

Club
AFC Bournemouth
League
Premier League
Nationality
England
Age
25
Height
188 cm
Foot
Right
Valued
9 Dec 2025

Reading the valuation

The market values Dennis at €350k. Model A, which never saw Dennis during training, estimates €2M: the market value is 82% below that estimate.

That is a factor of ×5.71. 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 €650k, 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.

▼ −1.74A €2M▼ −0.62B €650k
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
17
Minutes
1,530
Started
17/17
Min / app
90
Cards
0Y 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 Dennis…

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 €350k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €350kModel A €2M

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

Will Dennis's percentiles among goalkeepers: Minutes, two years 30th, Starts 62nd, Minutes, last 365 days 2nd, European club minutes 32nd30thMinutes62ndStarts2ndRecent32ndEurope

Dashed ring: the goalkeeper median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

100% this player100% goalkeeper median62nd percentile

70%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
€100k
Jul 2020
Peak
€350k
May 2024
Model target
€350k
Dec 2025
Valuations
13
3 club changes
Dec 2025€350kAFC BournemouthValuation the model is trained to reproduce

Dec 2025: €350k, AFC Bournemouth. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-07-30€100kAFC Bournemouth U23
2020-10-15€100kAFC Bournemouth U23
2021-03-10€100kAFC Bournemouth U23
2021-06-30€100kAFC Bournemouth U23
2021-11-24€100kAFC Bournemouth
2022-05-13€100kAFC Bournemouth
2022-11-03€200kAFC Bournemouth
2023-06-20€150kAFC Bournemouth
2023-12-05€175kKilmarnock FC
2024-05-30€350kKilmarnock FC
2024-12-16€350kAFC Bournemouth
2025-05-30€350kAFC Bournemouth
2025-12-09€350kAFC Bournemouth

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
−1.742

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 →

Premier League555 players · median €18M

Valued above 2% of the 555 Premier League players.

€150k€1M€7.5M€50M€350kSee them in the Explorer →

Goalkeepers, all leagues485 players · median €1M

Valued above 20% of the 485 goalkeepers.

€20k€200k€2M€20M€350kSee them in the Explorer →

Where Dennis 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).