Tim Siersleben

26 yrs · Centre-back · Germany
1. Fußballclub Heidenheim 1846 · Bundesliga · Foot: left · Height: 187 cm
Risk: ModerateConfidence: MediumSample: MediumDevelopment: LowContract: until 30 Jun 2028
Market value
€1.8M
Updated 6 days ago
Estimated acquisition
€659k – €2.3M
Estimated · 20–80% range
Model value
€858k – €2.9M
Performance-implied · estimated
Projected (24m)
€818k – €1.9M
Resale range · estimated
Potential value gap
-€1.4M – €2.3M
Model value − acquisition

Value picture

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

Estimated acquisition€659k – €2.3M
Model value (performance-implied)€858k – €2.9M
Projected value (24 months)€818k – €1.9M
Dashed line: current market value (€1.8M). Bars are 20–80% model ranges; tick = median.

The model rates Tim Siersleben's performance-implied value at EUR 0.9M-2.9M, above the estimated acquisition range of EUR 0.7M-2.3M. Its 24-month market value projection is EUR 0.8M-1.9M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.

Bargain Index: 50

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

PerformanceAverage47th pct among DEF peers (age-neutral)
AgeNeutral26.3 years
Acquisition costFavorableest. €1.4M vs market €1.8M
Expected appreciationLow-22% over ~2 years (model)
Value gapSmallweak predictor on its own
DevelopmentLow
League translationBig-five leagueleague coefficient 0.94
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: €2.5M

Profile vs positional peers

Percentiles among 1268 evaluated DEF players with 900+ minutes.

Performance (last season, league)

Minutes
1082 (35% of available)
Goals + assists / 90
0.00
Context-adjusted G+A / 90
0.04
xG, xA, progression
Data unavailable
Defensive actions
Data unavailable
Performance percentile
47 (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
0.94 (rank 3)
Team strength (Elo)
1323
Opponent strength
1495
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)
€818k – €1.9M

Historical comparables (8): median 2-year value change -24% (IQR -40% to -10%).

Risk profile

Overall: Moderate

  • ⚠Limited sample: 1082 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.
2025/261. Fußballclub Heidenheim 1846BundesligaCB15108235%000.000.04149513230.94
2024/251. Fußballclub Heidenheim 1846BundesligaCB16118239%000.000.04150313530.94
2023/241. Fußballclub Heidenheim 1846BundesligaCB1490930%000.000.04150614241.01
2020/21VfL WolfsburgBundesligaCB1331%000.000.05147216131.06

Cups & continental competitions

SeasonCompetitionClubAppsMinGAAvg opp. Elo
2025/26Dfb Pokal1. Fußballclub Heidenheim 1846211000—
2024/25Uefa Conference League Qualifying1. Fußballclub Heidenheim 18462180001390
2024/25Dfb Pokal1. Fußballclub Heidenheim 1846210600—
2023/24Dfb Pokal1. Fußballclub Heidenheim 1846213500—

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
Abdelhamid El Kaoutari
Ligue 1 · 2017
27€2.0M€600kfell
Ardian Ismajli
Serie A · 2022
26€1.8M€3.0Mrose
Ismaël Traoré
Ligue 1 · 2013
27€1.3M€800kfell
Davide Brivio
Serie A · 2013
25€1.6M€1.5Mflat
Syam Ben Youssef
Ligue 1 · 2017
28€1.3M€900kfell
Igor Silva
Ligue 1 · 2022
26€2.0M€1.0Mfell
Jacopo Sala
Serie A · 2018
27€1.5M€1.2Mfell
Vincent Muratori
Ligue 1 · 2013
26€900k€800kflat

Transfer history

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

DateFromToFeeMV at time
1 Jul 2023WolfsburgHeidenheim€500k€1.5M
30 Jun 2023HeidenheimWolfsburgFree / loan€1.5M
1 Jul 2021WolfsburgHeidenheimFree / loan€250k
1 Jan 2021Wolfsburg IIWolfsburgUnknown€200k
1 Jul 2019Wolfsburg U19Wolfsburg IIUnknownData unavailable
1 Jul 2017Wolfsburg U17Wolfsburg U19UnknownData unavailable
12 Jul 2016Magdeburg U17Wolfsburg U17Free / loanData unavailable
1 Jul 20151.FC MagdeburgMagdeburg 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.

Tim Siersleben · MoneyballAI