Mathieu Maertens

31 yrs · Attacking midfielder (also LM) · Belgium
Oud-Heverlee Leuven · Jupiler Pro League · Foot: right · Height: 185 cm
Risk: HighConfidence: MediumSample: MediumDevelopment: LowContract: Data unavailable
Market value
€600k
Updated 6 days ago
Estimated acquisition
€180k – €790k
Estimated · 20–80% range
Model value
€420k – €973k
Performance-implied · estimated
Projected (24m)
€172k – €462k
Resale range · estimated
Potential value gap
-€370k – €793k
Model value − acquisition

Value picture

Where the market, the likely price and the model estimates sit.

Estimated acquisition€180k – €790k
Model value (performance-implied)€420k – €973k
Projected value (24 months)€172k – €462k
Dashed line: current market value (€600k). Bars are 20–80% model ranges; tick = median.

The model rates Mathieu Maertens's performance-implied value at EUR 0.4M-1.0M, above the estimated acquisition range of EUR 0.2M-0.8M. Its 24-month market value projection is EUR 0.2M-0.5M. Context-adjusted goal contributions are 1.12x the positional average in the league (1041 minutes, league coefficient 0.65). Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Acquisition note: Contract end date unavailable: range widened by 15% each side.

Bargain Index: 18

What drives the score. Not a black box: each component and its level.

PerformanceBelow average28.8th pct among MID peers (age-neutral)
AgeUnfavorable31.3 years
Acquisition costFavorableest. €384k vs market €600k
Expected appreciationVery low-52% over ~2 years (model)
Value gapLargeweak predictor on its own
DevelopmentLow
League translationModerateleague coefficient 0.65
Tactical fitNot evaluatedRequires event/role data not available from the current free source.
RiskHigh
Data confidenceMedium

Bargain Index = percentile (among all evaluated players) of expected 2-year value relative to estimated cost. See methodology and backtests.

Market value history

Market value ≠ transfer fee ≠ acquisition cost.

Highest recorded: €3.0M

Profile vs positional peers

Percentiles among 1163 evaluated MID players with 900+ minutes.

Performance (last season, league)

Minutes
1041 (39% of available)
Goals + assists / 90
0.35
Context-adjusted G+A / 90
0.45
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
29 (Below average)

Adjusted = shrunk toward positional baseline for small samples, corrected for team dominance over opponents, expressed relative to positional peers in the same league.

Context

League strength
0.65 (rank 6)
Team strength (Elo)
1329
Opponent strength
1376
Possession, role
Data unavailable

League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.

Potential

Development
Low
Trajectory
improving
Breakout probability
Age > 23
Resale range (24m)
€172k – €462k

Historical comparables (8): median 2-year value change -35% (IQR -70% to -25%).

Risk profile

Overall: High

  • ⚠Limited sample: 1041 league minutes last season.
  • ⚠No continental-competition minutes last season.
  • ⚠Age 31: resale value typically declines.
  • ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
  • ⓘContract end date unavailable (or stale in source).
  • ⓘInjury history unavailable from current data source.

League translation

What happened to players who moved from this league to the big-five leagues (observed, not a forecast).

Historical movers
60 (MID)
Relative output kept
63%–142%
Held a regular role (900+ min)
72%
Confidence
Medium

Output is relative to positional peers in each league. Movers are a selected group (clubs buy players who fit), so treat this as context, not a guarantee.

Season-by-season (domestic league)

Context-adjusted values are model outputs.

SeasonClubLeaguePosAppsMinMin shareGAG+A/90Adj. G+A/90Opp. EloTeam EloLeague str.
2025/26Oud-Heverlee LeuvenJupiler Pro LeagueAM27104139%130.350.45137613290.65
2024/25Oud-Heverlee LeuvenJupiler Pro LeagueAM1278129%110.230.36135013230.63
2023/24Oud-Heverlee LeuvenJupiler Pro LeagueAM1768525%100.130.32135613020.63
2022/23Oud-Heverlee LeuvenJupiler Pro LeagueAM24202166%540.400.43131513380.58
2021/22Oud-Heverlee LeuvenJupiler Pro LeagueAM30234977%940.500.51136012460.49
2020/21Oud-Heverlee LeuvenJupiler Pro LeagueLM19142347%300.190.32136612680.55
2014/15Cercle BruggeJupiler Pro LeagueAM753420%000.000.36136811660.54

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Jupiler Pro League Europe Play OffsOud-Heverlee Leuven8229001396

Small continental samples are shown for context only and are not over-weighted.

Historical comparables

Most similar profiles 2+ years ago (same position group) and what happened next. Chosen by similarity only — failures included.

Player (then)AgeValue then~2y laterOutcome
Damien Marcq
Jupiler Pro League · 2020
32€475k€350kfell
Igor Koronov
Premier Liga · 2017
31€500k€150kfell
Fábio Espinho
Liga Portugal · 2016
31€750k€500kfell
Vyacheslav Sharpar
Premier Liga · 2017
30€500k€400kfell
Tom Van Imschoot
Jupiler Pro League · 2013
32€350k€100kfell
Lukas Tesak
Premier Liga · 2017
32€600k€175kfell
Carlos Martins
Liga Portugal · 2015
33€800k€500kfell
Sergiy Shevchuk
Premier Liga · 2014
29€600k€500kflat

Transfer history

Fees as reported by the source; undisclosed fees shown as unknown, never estimated.

DateFromToFeeMV at time
1 Jul 2026OH LeuvenWithout ClubUnknown€600k
12 Jul 2017Cercle BruggeOH LeuvenUnknown€500k
1 Jul 2014Cercle U21Cercle BruggeUnknownData unavailable
1 Jul 2013Cercle U19Cercle U21UnknownData unavailable
1 Jul 2012Cercle U17Cercle U19UnknownData unavailable
1 Jul 2011Cercle YouthCercle U17UnknownData unavailable

MoneyballAI identifies statistical opportunities from available data. A player flagged as a potential bargain is not guaranteed to succeed, to transfer, to rise in value, or to generate resale profit. Market values, fees and contracts come from third-party sources; ranges are model estimates with stated confidence.