FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Warren Zaïre-Emery

Warren

Zaïre-Emery

CMFrance · Paris Saint-Germain

№ 810092World Class €100M −0.23

Photo: Bryan Berlin / WikiPortraits, CC BY-SA 4.0 (background removed)

Player dossierLigue 1

WarrenZaïre-Emery

CMCentral MidfieldMidfield

Club
Paris Saint-Germain
League
Ligue 1
Nationality
France
Age
20
Height
176 cm
Foot
Right
Valued
1 Jun 2026

Reading the valuation

The market values Zaïre-Emery at €80M. Model A, which never saw Zaïre-Emery during training, estimates €100M: the market value is 20% below that estimate.

That is a factor of ×1.25. 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 €72.2M, 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.

▼ −0.23A €100M▲ +0.10B €72.2M
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
100
Minutes
6,867
Goals
5
Assists
7
Started
75/100
Min / app
69
Cards
8Y 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 Zaïre-Emery…

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 €80M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €80MModel A €100M

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

Warren Zaïre-Emery's percentiles among midfielders: Goals per 90 42nd, Assists per 90 49th, Minutes, two years 97th, Starts 61st, Minutes, last 365 days 99th, European club minutes 97th42ndGoals49thAssists97thMinutes61stStarts99thRecent97thEurope

Dashed ring: the midfielder median (50th percentile)

Minutes, last 365 days

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

4,124 this player1,541 midfielder median99th percentile

0peer deciles · median line · this player ●4,800

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
€5M
Sept 2022
Peak
€80M
Jun 2026
Model target
€80M
Jun 2026
Valuations
13
0 club changes
Jun 2026€80MParis Saint-GermainValuation the model is trained to reproduce

Jun 2026: €80M, Paris Saint-Germain. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2022-09-19€5MParis Saint-Germain
2022-11-02€6MParis Saint-Germain
2023-03-27€18MParis Saint-Germain
2023-06-27€20MParis Saint-Germain
2023-10-16€50MParis Saint-Germain
2023-12-18€60MParis Saint-Germain
2024-06-03€60MParis Saint-Germain
2024-12-10€60MParis Saint-Germain
2025-06-03€55MParis Saint-Germain
2025-10-10€50MParis Saint-Germain
2025-12-15€50MParis Saint-Germain
2026-03-27€60MParis Saint-Germain
2026-06-01€80MParis Saint-Germain

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
−0.227

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 →

Ligue 1423 players · median €5M

Joint 6th highest observed value among 423 Ligue 1 players.

€100k€750k€5M€30M€80MSee them in the Explorer →

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

Valued above 99% of the 1,687 midfielders.

€20k€200k€2M€20M€80MSee them in the Explorer →

Where Zaïre-Emery 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).