Diogo Costa

27 yrs · Goalkeeper · Portugal
FC Porto · Liga Portugal · Foot: right · Height: 188 cm
Risk: LowConfidence: MediumSample: HighDevelopment: LowContract: until 30 Jun 2030
Market value
€40.0M
Updated today
Estimated acquisition
€28.4M – €46.1M
Estimated · 20–80% range
Model value
€4.6M – €16.8M
Performance-implied · estimated
Projected (24m)
€20.4M – €39.9M
Resale range · estimated
Potential value gap
-€41.6M – -€11.6M
Model value − acquisition

Value picture

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

Estimated acquisition€28.4M – €46.1M
Model value (performance-implied)€4.6M – €16.8M
Projected value (24 months)€20.4M – €39.9M
Dashed line: current market value (€40.0M). Bars are 20–80% model ranges; tick = median.

The model rates Diogo Costa's performance-implied value at EUR 4.6M-16.8M, below the estimated acquisition range of EUR 28.4M-46.1M. Its 24-month market value projection is EUR 20.4M-39.9M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Bargain Index: 20

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

PerformanceHigh85.9th pct among GK peers (age-neutral)
AgeNeutral26.8 years
Acquisition costNeutralest. €35.3M vs market €40.0M
Expected appreciationVery low-33% over ~2 years (model)
Value gapVery negativeweak predictor on its own
DevelopmentLow
League translationModerateleague coefficient 0.58
Tactical fitNot evaluatedRequires event/role data not available from the current free source.
RiskLow
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: €45.0M

Profile vs positional peers

Percentiles among 284 evaluated GK players with 900+ minutes.

Performance (last season, league)

Minutes
2907 (95% of available)
Goals + assists / 90
0.00
Context-adjusted G+A / 90
0.00
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
86 (High)

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
0.58 (rank 9)
Team strength (Elo)
1594
Opponent strength
1323
Possession, role
Data unavailable

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

Potential

Development
Low
Trajectory
stable
Breakout probability
Age > 23
Resale range (24m)
€20.4M – €39.9M

Trajectory drivers: team strength up (+86 Elo).

Historical comparables (8): median 2-year value change -13% (IQR -45% to +11%).

Risk profile

Overall: Low

  • ⚠League level coefficient 0.58 (1.00 = big-five average): output may not translate.
  • ⓘ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
182 (all positions)
Relative output kept
70%–147%
Held a regular role (900+ min)
73%
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.
2025/26FC PortoLiga PortugalGK33290795%000.000.00132315940.58
2024/25FC PortoLiga PortugalGK32288094%000.000.00133615080.51
2023/24FC PortoLiga PortugalGK33294596%000.000.00135816280.58
2022/23FC PortoLiga PortugalGK33297097%000.000.00138617440.68
2021/22FC PortoLiga PortugalGK33297097%000.000.00135616920.67
2020/21FC PortoLiga PortugalGK1903%000.000.00129316800.61
2019/20FC PortoLiga PortugalGK32568%000.000.00143316090.59

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Uefa Europa LeagueFC Porto121080001482
2025/26World CupPortugal327000—
2024/25Uefa Europa LeagueFC Porto10900001550
2024/25Supercup Candido De OliveiraFC Porto1120001675
2023/24Uefa Champions LeagueFC Porto8750001644
2023/24Supercup Candido De OliveiraFC Porto190001718
2022/23Uefa Champions LeagueFC Porto8720011625
2021/22Uefa Champions LeagueFC Porto6540001731
2021/22Uefa Europa LeagueFC Porto4360001572
2020/21Uefa Champions LeagueFC Porto190001554

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
André Onana
Eredivisie · 2020
24€36.0M€12.0Mfell
Mike Maignan
Ligue 1 · 2021
26€25.0M€45.0Mrose
Rui Patrício
Liga Portugal · 2015
27€15.0M€16.0Mflat
Jasper Cillessen
Eredivisie · 2016
27€12.0M€9.0Mfell
Odysseas Vlachodimos
Liga Portugal · 2020
26€12.0M€15.0Mrose
Jeroen Zoet
Eredivisie · 2019
28€12.0M€2.0Mfell
Fernando Muslera
Super Lig · 2015
29€17.0M€11.0Mfell
Anatoliy Trubin
Liga Portugal · 2024
23€25.0M€25.0Mflat

Transfer history

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

DateFromToFeeMV at time
1 Jul 2019FC Porto BPortoUnknown€4.0M
1 Jul 2016FC Porto U19FC Porto BUnknownData unavailable
1 Jul 2015FC Porto U17FC Porto U19UnknownData unavailable
1 Jul 2014FC Porto U15FC Porto U17UnknownData unavailable
1 Jul 2012FC Porto YouthFC Porto U15UnknownData 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.