Jean-Daniel AkpaAkpro

CMCentral MidfieldMidfield

Club: Hellas Verona
League: Serie A
Nationality: Cote d'Ivoire
Age: 33
Height: 180 cm
Foot: Right
Valued: 29 May 2026

Reading the valuation

The market values Akpro at €500k. Model A, which never saw Akpro during training, estimates €550k: the market value is 9% below that estimate.

That is a factor of ×1.10. 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 €342k, 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.

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: 36
Minutes: 2,478
Goals: 1
Assists: 0
Started: 29/36
Min / app: 69
Cards: 13Y 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 Akpro…

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 €500k

Checking API

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

Dashed ring: the midfielder median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

81% this player69% midfielder median71st 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: €400k; Oct 2011
Peak: €3.5M; Jun 2015
Model target: €500k; May 2026
Valuations: 34; 7 club changes

May 2026€500kHellas VeronaValuation the model is trained to reproduce

May 2026: €500k, Hellas Verona. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table

Date	Market value	Club
2011-10-15	€400k	FC Toulouse
2011-12-24	€900k	FC Toulouse
2012-05-23	€900k	FC Toulouse
2013-01-07	€1.3M	FC Toulouse
2013-05-30	€1.8M	FC Toulouse
2014-01-14	€2M	FC Toulouse
2014-08-07	€2M	FC Toulouse
2015-01-14	€2.5M	FC Toulouse
2015-06-06	€3.5M	FC Toulouse
2016-02-04	€3.5M	FC Toulouse
2016-07-13	€3M	FC Toulouse
2017-01-16	€1.8M	FC Toulouse
2017-06-01	€1.5M	FC Toulouse
2018-02-12	€1M	US Salernitana 1919
2018-06-18	€1M	US Salernitana 1919
2019-01-17	€1M	US Salernitana 1919
2019-06-05	€500k	US Salernitana 1919
2019-12-30	€500k	US Salernitana 1919
2020-04-08	€400k	US Salernitana 1919
2020-08-21	€600k	US Salernitana 1919
2020-10-29	€1.7M	SS Lazio
2020-12-29	€3.5M	SS Lazio
2021-06-03	€3.5M	SS Lazio
2021-12-28	€3.2M	SS Lazio
2022-06-07	€2M	SS Lazio
2022-11-11	€1.4M	FC Empoli
2023-06-15	€1.5M	FC Empoli
2023-12-20	€1M	AC Monza
2024-06-05	€1M	AC Monza
2024-10-18	€500k	SS Lazio
2024-12-18	€500k	SS Lazio
2025-06-17	€500k	AC Monza
2025-12-23	€500k	Hellas Verona
2026-05-29	€500k	Hellas Verona

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: −0.095

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 →

Serie A507 players · median €5.5M

Valued above 1% of the 507 Serie A players.

See them in the Explorer →

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

Valued above 16% of the 1,687 midfielders.

See them in the Explorer →

Where Akpro appears

TerminalSerie A in the Player Explorer
TerminalSerie A on the League Landscape

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).