FairValue

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

AMPortugal · AE Kifisia

№ 450790Emerging €749k +0.07

Player dossierSuper League

Benny

AMAttacking MidfieldMidfield

Club
AE Kifisia
League
Super League
Nationality
Portugal
Age
28
Height
176 cm
Foot
Left
Valued
4 Jun 2026

Reading the valuation

The market values Benny at €800k. Model A, which never saw Benny during training, estimates €749k: the market value is 7% above that estimate.

That is a factor of ×1.07. Model A's typical held-out miss is ×1.50 either way, so this gap is within its usual error.

Without league and club, Model B estimates €1.1M, 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.

▲ +0.07A €749k▼ −0.36B €1.1M
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
54
Minutes
2,575
Goals
5
Assists
4
Started
28/54
Min / app
48
Cards
9Y 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 Benny…

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 €749k

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 1,687 midfielders

Benny's percentiles among midfielders: Goals per 90 78th, Assists per 90 67th, Minutes, two years 49th, Starts 24th, Minutes, last 365 days 28th, European club minutes 30th78thGoals67thAssists49thMinutes24thStarts28thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Goals per 90

Club goals per 90 minutes played in the two years to the valuation date.

0.17 this player0.08 midfielder median78th percentile

0.00peer deciles · median line · this player ●0.93

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
€25k
Sept 2016
Peak
€1M
May 2025
Model target
€800k
Jun 2026
Valuations
19
9 club changes
Jun 2026€800kAE KifisiaValuation the model is trained to reproduce

Jun 2026: €800k, AE Kifisia. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-09-30€25kLeixões SC
2017-06-30€25kLeixões SC
2019-02-12€800kSL Benfica B
2019-06-29€600kSL Benfica B
2019-12-30€400kFC Paços de Ferreira
2020-04-08€325kGD Chaves
2020-08-17€300kFC Paços de Ferreira
2021-06-29€200kSC Covilhã
2022-04-01€200kUD Vilafranquense
2022-06-27€150kUD Vilafranquense
2022-12-28€225kUD Vilafranquense
2023-06-28€500kUD Vilafranquense
2023-12-14€500kAvs Futebol
2024-06-20€700kAvs Futebol
2024-12-19€700kMoreirense FC
2025-05-30€1MMoreirense FC
2025-12-18€1MMoreirense FC
2026-03-06€900kAE Kifisia
2026-06-04€800kAE Kifisia

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
+0.066

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 →

Super League356 players · median €600k

Valued above 60% of the 356 Super League players.

€20k€150k€1M€7.5M€800kSee them in the Explorer →

Midfielders, all leagues1,687 players · median €2M

Valued above 27% of the 1,687 midfielders.

€20k€200k€2M€20M€800kSee them in the Explorer →

Where Benny 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).