FairValue

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Portrait of Edmond Tapsoba

Edmond

Tapsoba

CBBurkina Faso · Bayer 04 Leverkusen

№ 564545World Class €26.2M +0.29

Image: FootyLogos

Player dossierBundesliga

EdmondTapsoba

CBCentre-BackDefender

Club
Bayer 04 Leverkusen
League
Bundesliga
Nationality
Burkina Faso
Age
27
Height
194 cm
Foot
Right
Valued
27 May 2026

Reading the valuation

The market values Tapsoba at €35M. Model A, which never saw Tapsoba during training, estimates €26.2M: the market value is 34% above that estimate.

That is a factor of ×1.34. 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 €24.7M, 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.

▲ +0.29A €26.2M▲ +0.35B €24.7M
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
87
Minutes
7,454
Goals
5
Assists
5
Started
84/87
Min / app
86
Cards
19Y 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 Tapsoba…

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 €35M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €35MModel A €26.2M

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

Edmond Tapsoba's percentiles among defenders: Goals per 90 70th, Assists per 90 63rd, Minutes, two years 99th, Starts 88th, Minutes, last 365 days 98th, European club minutes 84th70thGoals63rdAssists99thMinutes88thStarts98thRecent84thEurope

Dashed ring: the defender median (50th percentile)

Minutes, two years

Total club minutes in the two-year window: how much the player was used.

7,454 this player2,860 defender median99th percentile

451peer deciles · median line · this player ●9,111

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
€50k
Feb 2018
Peak
€45M
May 2024
Model target
€35M
May 2026
Valuations
24
2 club changes
May 2026€35MBayer 04 LeverkusenValuation the model is trained to reproduce

May 2026: €35M, Bayer 04 Leverkusen. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2018-02-23€50kVitória Guimarães SC B
2018-06-29€50kVitória Guimarães SC B
2019-02-12€450kVitória Guimarães SC B
2019-06-29€350kVitória Guimarães SC B
2019-10-11€2MVitória Guimarães SC
2019-12-30€4.5MVitória Guimarães SC
2020-02-11€16MBayer 04 Leverkusen
2020-03-11€20MBayer 04 Leverkusen
2020-04-08€18MBayer 04 Leverkusen
2020-07-08€22MBayer 04 Leverkusen
2020-11-26€30MBayer 04 Leverkusen
2021-02-10€40MBayer 04 Leverkusen
2021-06-09€40MBayer 04 Leverkusen
2021-12-22€40MBayer 04 Leverkusen
2022-06-09€35MBayer 04 Leverkusen
2022-11-09€30MBayer 04 Leverkusen
2023-06-22€30MBayer 04 Leverkusen
2023-10-18€40MBayer 04 Leverkusen
2023-12-14€40MBayer 04 Leverkusen
2024-05-29€45MBayer 04 Leverkusen
2024-12-20€40MBayer 04 Leverkusen
2025-06-05€35MBayer 04 Leverkusen
2025-12-19€35MBayer 04 Leverkusen
2026-05-27€35MBayer 04 Leverkusen

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
+0.291

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 92% of the 451 Bundesliga players.

€300k€2M€15M€100M€35MSee them in the Explorer →

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

Valued above 96% of the 2,065 defenders.

€20k€200k€2M€20M€35MSee them in the Explorer →

Where Tapsoba 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).