FairValue

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

Dramé

CBMali · CF Estrela Amadora

№ 461582Emerging €480k −0.47

Player dossierLiga Portugal

IssiarDramé

CBCentre-BackDefender

Club
CF Estrela Amadora
League
Liga Portugal
Nationality
Mali
Age
27
Height
197 cm
Foot
Right
Valued
28 May 2026

Reading the valuation

The market values Dramé at €300k. Model A, which never saw Dramé during training, estimates €480k: the market value is 37% below that estimate.

That is a factor of ×1.60. 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 €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.

▼ −0.47A €480k▼ −1.27B €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
22
Minutes
1,592
Goals
0
Assists
1
Started
18/22
Min / app
72
Cards
3Y 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 Dramé…

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 €300k

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €300kModel A €480k

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

Issiar Dramé's percentiles among defenders: Goals per 90 18th, Assists per 90 61st, Minutes, two years 25th, Starts 49th, Minutes, last 365 days 2nd, European club minutes 30th18thGoals61stAssists25thMinutes49thStarts2ndRecent30thEurope

Dashed ring: the defender median (50th percentile)

Assists per 90

Club assists per 90 minutes in the same window.

0.06 this player0.04 defender median61st percentile

0.00peer deciles · median line · this player ●0.58

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 2020
Peak
€600k
May 2025
Model target
€300k
May 2026
Valuations
14
4 club changes
May 2026€300kCF Estrela AmadoraValuation the model is trained to reproduce

May 2026: €300k, CF Estrela Amadora. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2020-10-16€100kOlimpik Donetsk
2021-01-14€300kOlimpik Donetsk
2021-06-07€400kOlimpik Donetsk
2021-11-09€400kNew York Red Bulls
2022-05-18€400kPFC Lviv
2022-10-28€300kSC Bastia
2023-06-16€250kSC Bastia
2023-10-27€400kSC Bastia
2023-12-13€400kSC Bastia
2024-06-11€400kSC Bastia
2024-12-19€500kCF Estrela Amadora
2025-05-30€600kCF Estrela Amadora
2025-12-18€400kCF Estrela Amadora
2026-05-28€300kCF Estrela Amadora

Audit context group-level, not about this player

Audit group
non-UEFA
Population gap, Model A
+0.093 95% CI +0.063 to +0.124
This player, market vs held-out A
−0.469

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 →

Liga Portugal423 players · median €1M

Valued above 8% of the 423 Liga Portugal players.

€20k€200k€2M€20M€300kSee them in the Explorer →

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

Valued above 9% of the 2,065 defenders.

€20k€200k€2M€20M€300kSee them in the Explorer →

Where Dramé 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).