FairValue

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Alex Opoku

Sarfo

DMGhana · FC Pari Nizhniy Novgorod

№ 1021819Emerging €917k +0.09

Player dossierPremier Liga

Alex OpokuSarfo

DMDefensive MidfieldMidfield

Club
FC Pari Nizhniy Novgorod
League
Premier Liga
Nationality
Ghana
Age
21
Height
188 cm
Foot
Right
Valued
26 May 2026

Reading the valuation

The market values Sarfo at €1M. Model A, which never saw Sarfo during training, estimates €917k: the market value is 9% above that estimate.

That is a factor of ×1.09. 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 €728k, 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.

▲ +0.09A €917k▲ +0.32B €728k
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
14
Minutes
1,260
Goals
0
Assists
0
Started
14/14
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 Sarfo…

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 €1M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €1MModel A €917k

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

Alex Opoku Sarfo's percentiles among midfielders: Goals per 90 10th, Assists per 90 8th, Minutes, two years 19th, Starts 99th, Minutes, last 365 days 40th, European club minutes 30th10thGoals8thAssists19thMinutes99thStarts40thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

100% this player69% midfielder median99th percentile

7%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
€25k
Jun 2022
Peak
€1M
Mar 2026
Model target
€1M
May 2026
Valuations
10
3 club changes
May 2026€1MFC Pari Nizhniy NovgorodValuation the model is trained to reproduce

May 2026: €1M, FC Pari Nizhniy Novgorod. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2022-06-11€25kUnknown
2023-09-29€75kAEZ Zakakiou
2023-12-28€175kAEZ Zakakiou
2024-05-17€175kAEZ Zakakiou
2024-09-24€200kAris Limassol
2024-12-09€400kAris Limassol
2025-05-29€500kAris Limassol
2025-12-16€750kFC Pari Nizhniy Novgorod
2026-03-25€1MFC Pari Nizhniy Novgorod
2026-05-26€1MFC Pari Nizhniy Novgorod

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
+0.087

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 Liga412 players · median €1M

Valued above 44% of the 412 Premier Liga players.

€50k€300k€2M€15M€1MSee them in the Explorer →

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

Valued above 32% of the 1,687 midfielders.

€20k€200k€2M€20M€1MSee them in the Explorer →

Where Sarfo 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).