FairValue

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  • EnvironmentOverviewWhat FairValue measures, what it found, where to go next.
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Portrait of Ramy Bensebaini

Ramy

Bensebaini

CBAlgeria · Borussia Dortmund

№ 284732Established €6.7M +0.05

Image: FootyLogos

Player dossierBundesliga

RamyBensebaini

CBCentre-BackDefender

Club
Borussia Dortmund
League
Bundesliga
Nationality
Algeria
Age
31
Height
187 cm
Foot
Left
Valued
27 May 2026

Reading the valuation

The market values Bensebaini at €7M. Model A, which never saw Bensebaini during training, estimates €6.7M: the market value is 5% above that estimate.

That is a factor of ×1.05. 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 €5.7M, 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.

▲ +0.05A €6.7M▲ +0.21B €5.7M
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
81
Minutes
5,732
Goals
10
Assists
10
Started
62/81
Min / app
71
Cards
20Y 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 Bensebaini…

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 €7M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €7MModel A €6.7M

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

Ramy Bensebaini's percentiles among defenders: Goals per 90 96th, Assists per 90 89th, Minutes, two years 91st, Starts 38th, Minutes, last 365 days 85th, European club minutes 97th96thGoals89thAssists91stMinutes38thStarts85thRecent97thEurope

Dashed ring: the defender median (50th percentile)

European club minutes

Share of minutes played in UEFA club competitions.

34% this player0% defender median97th percentile

0%peer deciles · median line · this player ●85%

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
€500k
Oct 2014
Peak
€22M
Feb 2021
Model target
€7M
May 2026
Valuations
30
4 club changes
May 2026€7MBorussia DortmundValuation the model is trained to reproduce

May 2026: €7M, Borussia Dortmund. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2014-10-05€500kLierse SK (-2018)
2015-01-08€800kLierse SK (-2018)
2015-06-24€1MLierse SK (-2018)
2016-02-04€2MMontpellier HSC
2016-07-13€2MStade Rennais FC
2017-01-16€2MStade Rennais FC
2017-06-01€2MStade Rennais FC
2017-10-12€4.5MStade Rennais FC
2018-01-24€7MStade Rennais FC
2018-06-04€8MStade Rennais FC
2018-12-17€8MStade Rennais FC
2019-06-03€8MStade Rennais FC
2019-12-17€12MBorussia Mönchengladbach
2020-04-08€9.5MBorussia Mönchengladbach
2020-07-08€15MBorussia Mönchengladbach
2020-11-26€18MBorussia Mönchengladbach
2021-02-10€22MBorussia Mönchengladbach
2021-06-09€22MBorussia Mönchengladbach
2021-12-22€22MBorussia Mönchengladbach
2022-03-24€17MBorussia Mönchengladbach
2022-06-09€17MBorussia Mönchengladbach
2022-11-09€20MBorussia Mönchengladbach
2023-06-22€20MBorussia Mönchengladbach
2023-12-14€12MBorussia Dortmund
2024-03-27€9MBorussia Dortmund
2024-05-29€7MBorussia Dortmund
2024-12-20€7MBorussia Dortmund
2025-06-05€7MBorussia Dortmund
2025-12-19€7MBorussia Dortmund
2026-05-27€7MBorussia Dortmund

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
+0.051

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 →

Bundesliga451 players · median €5M

Valued above 56% of the 451 Bundesliga players.

€300k€2M€15M€100M€7MSee them in the Explorer →

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

Valued above 76% of the 2,065 defenders.

€20k€200k€2M€20M€7MSee them in the Explorer →

Where Bensebaini 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).