Sam Johnstone

33 yrs · Goalkeeper · England
Wolverhampton Wanderers · Premier League · Foot: right · Height: 193 cm
Risk: HighConfidence: MediumSample: MediumDevelopment: LowContract: until 30 Jun 2028
Market value
€2.0M
Updated 6 days ago
Estimated acquisition
€827k – €4.1M
Estimated · 20–80% range
Model value
€1.2M – €1.7M
Performance-implied · estimated
Projected (24m)
€425k – €1.5M
Resale range · estimated
Potential value gap
-€2.9M – €916k
Model value − acquisition

Value picture

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

Estimated acquisition€827k – €4.1M
Model value (performance-implied)€1.2M – €1.7M
Projected value (24 months)€425k – €1.5M
Dashed line: current market value (€2.0M). Bars are 20–80% model ranges; tick = median.

The model rates Sam Johnstone's performance-implied value at EUR 1.2M-1.7M, below the estimated acquisition range of EUR 0.8M-4.1M. Its 24-month market value projection is EUR 0.4M-1.5M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Bargain Index: not assigned

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

Age above 33 (outside validated pool)

PerformanceAbove average73.7th pct among GK peers (age-neutral)
AgeUnfavorable33.3 years
Acquisition costNeutralest. €1.9M vs market €2.0M
Expected appreciationVery low-57% over ~2 years (model)
Value gapNegativeweak predictor on its own
DevelopmentLow
League translationBig-five leagueleague coefficient 1.3
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: €12.0M

Profile vs positional peers

Percentiles among 284 evaluated GK players with 900+ minutes.

Performance (last season, league)

Minutes
1080 (32% 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
74 (Above 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
1.30 (rank 1)
Team strength (Elo)
1425
Opponent strength
1607
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)
€425k – €1.5M

Trajectory drivers: team strength down (-77 Elo).

Historical comparables (8): median 2-year value change -43% (IQR -50% to -19%).

Risk profile

Overall: High

  • ▲Age 33: resale value typically declines.
  • ⚠Limited sample: 1080 league minutes last season.
  • ⚠Projection range wider than for most evaluated players.
  • ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
  • ⓘ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).

Already playing in a big-five league.

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.
2025/26Wolverhampton WanderersPremier LeagueGK12108032%000.000.00160714251.30
2024/25Wolverhampton WanderersPremier LeagueGK763018%000.000.00154315011.23
2023/24Crystal PalacePremier LeagueGK20179753%000.000.00154815621.14
2022/23Crystal PalacePremier LeagueGK981024%000.000.00148015361.23
2020/21West Bromwich AlbionPremier LeagueGK37333097%010.030.02156613771.19

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Fa CupWolverhampton Wanderers327001—
2024/25Fa CupWolverhampton Wanderers330000—
2023/24Fa CupCrystal Palace19000—
2016/17Fa CupAston Villa19000—
2014/15Fa CupDoncaster Rovers327000—

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
Boaz Myhill
Premier League · 2014
32€2.0M€2.0Mflat
Fraser Forster
Premier League · 2022
34€2.0M€1.2Mfell
Germán Lux
Laliga · 2015
33€800k€800kflat
Tom Heaton
Premier League · 2019
33€3.0M€1.0Mfell
Heurelho Gomes
Bundesliga · 2013
32€1.0M€750kfell
Jordi Codina
Laliga · 2014
32€800k€400kfell
Tim Wiese
Bundesliga · 2013
32€1.0M€500kfell
Miguel Ángel Moyá
Laliga · 2019
35€1.5M€800kfell

Transfer history

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

DateFromToFeeMV at time
30 Aug 2024Crystal PalaceWolves€11.9M€10.0M
1 Jul 2022West BromCrystal PalaceFree / loan€12.0M
3 Jul 2018Man UtdWest Brom€7.3M€2.5M
31 May 2018Aston VillaMan UtdFree / loan€2.5M
14 Jul 2017Man UtdAston VillaFree / loan€1.0M
31 May 2017Aston VillaMan UtdFree / loan€500k
5 Jan 2017Man UtdAston VillaFree / loan€250k
23 Jan 2016PrestonMan UtdFree / loan€250k
1 Jan 2016Man UtdPrestonFree / loan€250k
31 May 2015PrestonMan UtdFree / loan€250k
12 Jan 2015Man UtdPrestonFree / loan€250k
11 Jan 2015DoncasterMan UtdFree / loan€250k
27 Oct 2014Man UtdDoncasterFree / loan€250k
31 May 2014DoncasterMan UtdFree / loan€250k
31 Jan 2014Man UtdDoncasterFree / loan€250k
21 Aug 2013Yeovil TownMan UtdFree / loan€250k
17 Aug 2013Man UtdYeovil TownFree / loan€250k
31 May 2013WalsallMan UtdFree / loanData unavailable
20 Mar 2013Man UtdWalsallFree / loanData unavailable
10 Jan 2012Scunthorpe Utd.Man UtdFree / loanData unavailable
8 Sept 2011Man UtdScunthorpe Utd.Free / loanData unavailable
1 Aug 2011Oldham AthleticMan UtdFree / loanData unavailable
26 Jul 2011Man UtdOldham AthleticFree / loanData unavailable
1 Jul 2011Man Utd U18Man UtdUnknownData 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.