Isa Sakamoto

23 yrs · Attacking midfielder · Japan
KVC Westerlo · Jupiler Pro League · Foot: right · Height: 173 cm
Risk: ModerateConfidence: MediumSample: HighDevelopment: HighContract: until 30 Jun 2028
Market value
€4.0M
Updated today
Estimated acquisition
€2.0M – €5.7M
Estimated · 20–80% range
Model value
€1.1M – €3.2M
Performance-implied · estimated
Projected (24m)
€1.9M – €8.3M
Resale range · estimated
Potential value gap
-€4.5M – €1.2M
Model value − acquisition

Value picture

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

Estimated acquisition€2.0M – €5.7M
Model value (performance-implied)€1.1M – €3.2M
Projected value (24 months)€1.9M – €8.3M
Dashed line: current market value (€4.0M). Bars are 20–80% model ranges; tick = median.

The model rates Isa Sakamoto's performance-implied value at EUR 1.1M-3.2M, below the estimated acquisition range of EUR 2.0M-5.7M. Its 24-month market value projection is EUR 1.9M-8.3M. Context-adjusted goal contributions are 0.96x the positional average in the league (2395 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.

Bargain Index: 54

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

PerformanceAverage39.7th pct among MID peers (age-neutral)
AgeFavorable22.8 years
Acquisition costNeutralest. €3.9M vs market €4.0M
Expected appreciationNeutral+1% over ~2 years (model)
Value gapVery negativeweak predictor on its own
DevelopmentHighbreakout probability 30%
League translationModerateleague coefficient 0.65
Tactical fitNot evaluatedRequires event/role data not available from the current free source.
RiskModerate
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: €4.0M

Profile vs positional peers

Percentiles among 1163 evaluated MID players with 900+ minutes.

Performance (last season, league)

Minutes
2395 (89% of available)
Goals + assists / 90
0.30
Context-adjusted G+A / 90
0.39
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
40 (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)
1348
Opponent strength
1377
Possession, role
Data unavailable

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

Potential

Development
High
Trajectory
improving
Breakout probability
30%
Resale range (24m)
€1.9M – €8.3M

Trajectory drivers: minutes share up 64 pts; relative output down 36% vs positional peers.

Historical comparables (8): median 2-year value change -17% (IQR -38% to +107%).

Risk profile

Overall: Moderate

  • ▲Projection range among the widest 10% of evaluated players.
  • ⚠No continental-competition minutes last season.
  • ⓘ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.
2025/26KVC WesterloJupiler Pro LeagueAM30239589%440.300.39137713480.65
2024/25KVC WesterloJupiler Pro LeagueAM967025%320.670.60134713220.63

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Jupiler Pro League Europe Play OffsKVC Westerlo8630201357

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
Davy Pröpper
Eredivisie · 2014
23€3.5M€8.0Mrose
Didier Ndong
Ligue 1 · 2016
22€4.0M€8.0Mrose
Mahdi Camara
Ligue 1 · 2021
23€5.0M€3.0Mfell
Tomás Händel
Liga Portugal · 2024
24€7.0M€6.0Mflat
Matus Bero
Eredivisie · 2019
24€2.0M€1.6Mfell
Ogenyi Onazi
Super Lig · 2017
25€4.0M€2.5Mfell
Samuel Bastien
Jupiler Pro League · 2020
24€4.8M€2.2Mfell
Stephen Eustaquio
Liga Portugal · 2021
25€4.0M€12.0Mrose

Transfer history

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

DateFromToFeeMV at time
1 Jul 2025Gamba OsakaKVC Westerlo€600k€2.5M
30 Jun 2025KVC WesterloGamba OsakaFree / loan€2.5M
12 Jan 2025Gamba OsakaKVC WesterloFree / loan€700k
31 Jan 2024Fagiano OkayamaGamba OsakaFree / loan€150k
1 Feb 2023Gamba OsakaFagiano OkayamaFree / loan€150k
1 Feb 2022Gamba U18Gamba OsakaUnknown€50k

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.

Isa Sakamoto · MoneyballAI