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Marius

Marin

DMRomania · Pisa Sporting Club

№ 379163Established €1.8M +0.44

Player dossierSerie A

MariusMarin

DMDefensive MidfieldMidfield

Club
Pisa Sporting Club
League
Serie A
Nationality
Romania
Age
27
Height
180 cm
Foot
Right
Valued
29 May 2026

Reading the valuation

The market values Marin at €2.8M. Model A, which never saw Marin during training, estimates €1.8M: the market value is 56% above that estimate.

That is a factor of ×1.56. 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 €742k, 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.

▲ +0.44A €1.8M▲ +1.33B €742k
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
24
Minutes
1,359
Goals
0
Assists
0
Started
19/24
Min / app
57
Cards
8Y 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 Marin…

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 €2.8M

Checking API
EmergingEstablishedEliteWorld Class€2M€10M€30M€100k€1M€100MMarket €2.8MModel A €1.8M

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

Marius Marin's percentiles among midfielders: Goals per 90 10th, Assists per 90 8th, Minutes, two years 21st, Starts 69th, Minutes, last 365 days 44th, European club minutes 30th10thGoals8thAssists21stMinutes69thStarts44thRecent30thEurope

Dashed ring: the midfielder median (50th percentile)

Starts

Share of appearances started rather than entered from the bench.

79% this player69% midfielder median69th 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
€50k
Jul 2015
Peak
€3M
Dec 2021
Model target
€2.8M
May 2026
Valuations
23
4 club changes
May 2026€2.8MPisa Sporting ClubValuation the model is trained to reproduce

May 2026: €2.8M, Pisa Sporting Club. Dotted lines mark the €2M, €10M and €30M tier boundaries.

Show as a table
DateMarket valueClub
2015-07-04€50kACS Poli Timisoara U19 (2012 - 2021)
2016-11-14€50kSassuolo Primavera
2017-06-26€75kSassuolo Primavera
2017-12-20€125kUS Catanzaro
2018-06-21€175kUS Catanzaro
2018-12-13€200kAC Pisa 1909
2019-06-19€200kAC Pisa 1909
2019-12-30€300kAC Pisa 1909
2020-08-21€500kAC Pisa 1909
2021-02-22€1MAC Pisa 1909
2021-06-24€1.5MAC Pisa 1909
2021-12-29€3MPisa Sporting Club
2022-06-06€3MPisa Sporting Club
2022-12-22€3MPisa Sporting Club
2023-06-12€2.4MPisa Sporting Club
2023-10-11€2MPisa Sporting Club
2023-12-27€1.6MPisa Sporting Club
2024-06-03€1.6MPisa Sporting Club
2024-10-15€2MPisa Sporting Club
2024-12-23€3MPisa Sporting Club
2025-06-02€3MPisa Sporting Club
2025-12-23€3MPisa Sporting Club
2026-05-29€2.8MPisa Sporting Club

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
+0.442

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 28% of the 507 Serie A players.

€100k€750k€5M€30M€2.8MSee them in the Explorer →

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

Valued above 55% of the 1,687 midfielders.

€20k€200k€2M€20M€2.8MSee them in the Explorer →

Where Marin 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).