Chiquinho

AMAttacking MidfieldMidfield

Club: Olympiacos Piraeus
League: Super League
Nationality: Portugal
Age: 30
Height: 175 cm
Foot: Right
Valued: 4 Jun 2026

Reading the valuation

The market values Chiquinho at €5M. Model A, which never saw Chiquinho during training, estimates €7.6M: the market value is 34% below that estimate.

That is a factor of ×1.52. 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 €5.9M, closer to the market here, although it is usually further off (typical miss ×2.07).

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: 72
Minutes: 4,717
Goals: 12
Assists: 10
Started: 57/72
Min / app: 66
Cards: 1Y 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 Chiquinho…

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 €5M

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)

European club minutes

Share of minutes played in UEFA club competitions.

24% this player0% midfielder median90th 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: €75k; Jul 2015
Peak: €9M; Dec 2019
Model target: €5M; Jun 2026
Valuations: 27; 9 club changes

Jun 2026€5MOlympiacos PiraeusValuation the model is trained to reproduce

Jun 2026: €5M, Olympiacos Piraeus. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table

Date	Market value	Club
2015-07-31	€75k	Gondomar SC
2016-09-30	€125k	Leixões SC
2017-03-13	€200k	NK Lokomotiva Zagreb
2017-09-08	€300k	Académica Coimbra
2018-02-23	€600k	Académica Coimbra
2018-06-29	€750k	Académica Coimbra
2019-01-11	€1M	Moreirense FC
2019-03-18	€3M	Moreirense FC
2019-06-07	€6M	Moreirense FC
2019-12-30	€9M	SL Benfica
2020-04-08	€7M	SL Benfica
2020-08-17	€8M	SL Benfica
2021-01-28	€6M	SL Benfica
2021-05-21	€6M	SL Benfica
2021-12-27	€4M	SC Braga
2022-03-31	€4M	Giresunspor
2022-06-01	€4.5M	Giresunspor
2022-11-01	€4M	SL Benfica
2023-03-02	€6M	SL Benfica
2023-06-16	€6M	SL Benfica
2023-12-27	€5M	SL Benfica
2024-03-06	€4M	Olympiacos Piraeus
2024-05-30	€4M	Olympiacos Piraeus
2024-12-18	€4.5M	Olympiacos Piraeus
2025-05-23	€5M	Olympiacos Piraeus
2025-12-12	€5M	Olympiacos Piraeus
2026-06-04	€5M	Olympiacos Piraeus

Audit context group-level, not about this player

Audit group: UEFA
Population gap, Model A: +0.093 95% CI +0.063 to +0.124
This player, market vs held-out A: −0.419

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 →

Super League356 players · median €600k

Valued above 93% of the 356 Super League players.

See them in the Explorer →

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

Valued above 65% of the 1,687 midfielders.

See them in the Explorer →

Where Chiquinho appears

TerminalSuper League in the Player Explorer
TerminalSuper League 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).