FairValue

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Jakub

Pokorny

CBCzech Republic · AE Kifisia

№ 333494Emerging €540k +0.10

Player dossierSuper League

JakubPokorny

CBCentre-BackDefender

Club
AE Kifisia
League
Super League
Nationality
Czech Republic
Age
29
Height
187 cm
Foot
Right
Valued
4 Jun 2026

Reading the valuation

The market values Pokorny at €600k. Model A, which never saw Pokorny during training, estimates €540k: the market value is 11% above that estimate.

That is a factor of ×1.11. 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 €534k, 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.

▲ +0.10A €540k▲ +0.12B €534k
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
23
Minutes
1,865
Goals
2
Assists
0
Started
21/23
Min / app
81
Cards
5Y 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 Pokorny…

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 €600k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €600kModel A €540k

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

Jakub Pokorny's percentiles among defenders: Goals per 90 86th, Assists per 90 17th, Minutes, two years 31st, Starts 73rd, Minutes, last 365 days 57th, European club minutes 30th86thGoals17thAssists31stMinutes73rdStarts57thRecent30thEurope

Dashed ring: the defender median (50th percentile)

Goals per 90

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

0.10 this player0.03 defender median86th percentile

0.00peer deciles · median line · this player ●0.41

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
Oct 2016
Peak
€600k
Dec 2025
Model target
€600k
Jun 2026
Valuations
22
4 club changes
Jun 2026€600kAE KifisiaValuation the model is trained to reproduce

Jun 2026: €600k, AE Kifisia. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2016-10-21€100kFC Banik Ostrava
2016-12-01€150kFC Banik Ostrava
2017-06-10€250kFC Banik Ostrava
2017-10-07€300kFC Banik Ostrava
2017-12-21€400kFC Banik Ostrava
2018-12-30€250kFC Hradec Kralove
2019-06-25€225kFC Hradec Kralove
2019-12-07€450kFC Banik Ostrava
2020-04-08€350kFC Banik Ostrava
2020-07-10€350kFC Banik Ostrava
2020-12-27€400kFC Banik Ostrava
2021-06-25€400kFC Banik Ostrava
2021-12-26€350kFC Banik Ostrava
2022-06-22€350kFC Banik Ostrava
2022-12-14€350kSK Sigma Olomouc
2023-06-20€400kSK Sigma Olomouc
2023-12-20€450kSK Sigma Olomouc
2024-06-05€500kSK Sigma Olomouc
2024-12-20€550kSK Sigma Olomouc
2025-06-17€550kSK Sigma Olomouc
2025-12-12€600kAE Kifisia
2026-06-04€600kAE 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
+0.105

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 49% of the 356 Super League players.

€20k€150k€1M€7.5M€600kSee them in the Explorer →

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

Valued above 22% of the 2,065 defenders.

€20k€200k€2M€20M€600kSee them in the Explorer →

Where Pokorny 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).