Sebastian Szymanski

27 yrs · Attacking midfielder (also RM, RW) · Poland
Stade Rennais FC · Ligue 1 · Foot: left · Height: 174 cm
Risk: ModerateConfidence: MediumSample: MediumDevelopment: LowContract: until 30 Jun 2029
Market value
€12.0M
Updated today
Estimated acquisition
€6.2M – €12.0M
Estimated · 20–80% range
Model value
€3.1M – €10.2M
Performance-implied · estimated
Projected (24m)
€4.4M – €11.9M
Resale range · estimated
Potential value gap
-€8.8M – €4.0M
Model value − acquisition

Value picture

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

Estimated acquisition€6.2M – €12.0M
Model value (performance-implied)€3.1M – €10.2M
Projected value (24 months)€4.4M – €11.9M
Dashed line: current market value (€12.0M). Bars are 20–80% model ranges; tick = median.

The model rates Sebastian Szymanski's performance-implied value at EUR 3.1M-10.2M, below the estimated acquisition range of EUR 6.2M-12.0M. Its 24-month market value projection is EUR 4.4M-11.9M. Context-adjusted goal contributions are 0.86x the positional average in the league (1217 minutes, league coefficient 0.88). Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Bargain Index: 13

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

PerformanceAbove average74.3th pct among MID peers (age-neutral)
AgeNeutral27.1 years
Acquisition costFavorableest. €9.9M vs market €12.0M
Expected appreciationVery low-42% over ~2 years (model)
Value gapNegativeweak predictor on its own
DevelopmentLow
League translationBig-five leagueleague coefficient 0.88
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: €20.0M

Profile vs positional peers

Percentiles among 1163 evaluated MID players with 900+ minutes.

Performance (last season, league)

Minutes
1217 (40% of available)
Goals + assists / 90
0.44
Context-adjusted G+A / 90
0.40
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
0.88 (rank 5)
Team strength (Elo)
1504
Opponent strength
1489
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)
€4.4M – €11.9M

Trajectory drivers: minutes share down 31 pts; changed club; league level up (+134 Elo); relative output up 75% vs positional peers.

Historical comparables (8): median 2-year value change -62% (IQR -70% to -24%).

Risk profile

Overall: Moderate

  • ⚠Limited sample: 1217 league minutes last season.
  • ⚠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.
2025/26Stade Rennais FCLigue 1AM1677725%130.460.40148915200.88
2025/26FenerbahceSuper LigRW1444014%110.410.24124014770.40
2024/25FenerbahceSuper LigAM35230371%350.310.19127715030.39
2023/24FenerbahceSuper LigAM37289985%10120.680.35128815830.45
2022/23Feyenoord RotterdamEredivisieAM29197364%940.590.30132016390.58
2021/22FK Dinamo MoskvaPremier LigaAM27217080%680.580.42133613740.52
2020/21FK Dinamo MoskvaPremier LigaAM28232886%160.270.29135413910.55
2019/20FK Dinamo MoskvaPremier LigaRM22159459%110.110.31140713620.63

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Uefa Champions League QualifyingFenerbahce4360011613
2025/26Uefa Europa LeagueFenerbahce5196101459
2024/25Uefa Europa LeagueFenerbahce12967231527
2024/25Uefa Champions League QualifyingFenerbahce4390111463
2023/24Uefa Conference League QualifyingFenerbahce6361331408
2022/23Uefa Europa LeagueFeyenoord Rotterdam9681131516
2022/23Knvb BekerFeyenoord Rotterdam215800—
2021/22Russian CupFK Dinamo Moskva532401—
2020/21Russian CupFK Dinamo Moskva218001—
2020/21Uefa Europa League QualifyingFK Dinamo Moskva190001373
2019/20Russian CupFK Dinamo Moskva19000—
2018/19Uefa Champions League QualifyingLegia Warszawa2139001412
2018/19Uefa Europa League QualifyingLegia Warszawa2110001267

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
Manuel Fernandes
Super Lig · 2014
28€12.0M€3.0Mfell
Adrien Trébel
Jupiler Pro League · 2019
28€7.0M€2.2Mfell
Marvin Martin
Ligue 1 · 2014
26€8.0M€2.0Mfell
Héctor Herrera
Liga Portugal · 2017
27€13.0M€22.0Mrose
Moatasem Al-Musrati
Liga Portugal · 2024
28€14.0M€4.5Mfell
Clément Chantôme
Ligue 1 · 2015
28€4.5M€2.0Mfell
Gaetano Castrovilli
Serie A · 2022
25€12.0M€7.0Mfell
Rémy Cabella
Ligue 1 · 2017
27€7.5M€14.0Mrose

Transfer history

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

DateFromToFeeMV at time
22 Jan 2026FenerbahçeStade Rennais€9.5M€12.0M
12 Jul 2023Dynamo MoscowFenerbahçe€10.7M€18.0M
30 Jun 2023FeyenoordDynamo MoscowFree / loan€18.0M
22 Jul 2022Dynamo MoscowFeyenoordFree / loan€14.0M
1 Jul 2019Legia WarszawaDinamo Moscow€5.5M€6.0M
7 Jul 2016Legia IILegia WarszawaUnknownData unavailable
1 Jul 2015Legia U19Legia IIUnknownData unavailable
1 Jul 2013Legia Yth.Legia U19UnknownData unavailable
1 Jan 2013AP TOP-54 Yth.Legia Yth.Free / loanData 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.