
Dies Janse
Value picture
Where the market, the likely price and the model estimates sit.
The model rates Dies Janse's performance-implied value at EUR 0.5M-3.0M, below the estimated acquisition range of EUR 4.8M-10.5M. Its 24-month market value projection is EUR 4.3M-18.8M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Bargain Index: 57
What drives the score. Not a black box: each component and its level.
| Performance | Below average | 29th pct among DEF peers (age-neutral) |
| Age | Very favorable | 20.5 years |
| Acquisition cost | Unfavorable | est. €8.3M vs market €6.5M |
| Expected appreciation | Very high | +36% over ~2 years (model) |
| Value gap | Very negative | weak predictor on its own |
| Development | Very High | breakout probability 37% |
| League translation | Uncertain | league coefficient 0.43 |
| Tactical fit | Not evaluated | Requires event/role data not available from the current free source. |
| Risk | High | |
| Data confidence | Medium |
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.
Profile vs positional peers
Percentiles among 1268 evaluated DEF players with 900+ minutes.
Performance (last season, league)
- Minutes
- 2724 (89% of available)
- Goals + assists / 90
- 0.13
- Context-adjusted G+A / 90
- 0.13
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 29 (Below 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
- 0.43 (rank 15)
- Team strength (Elo)
- 1248
- Opponent strength
- 1292
- Possession, role
- Data unavailable
League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.
Potential
- Development
- Very High
- Trajectory
- insufficient
- Breakout probability
- 37%
- Resale range (24m)
- €4.3M – €18.8M
Historical comparables (8): median 2-year value change +31% (IQR -3% to +52%).
Risk profile
Overall: High
- ▲Projection range among the widest 10% of evaluated players.
- ⚠League level coefficient 0.43 (1.00 = big-five average): output may not translate.
- ⚠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
- 82 (DEF)
- Relative output kept
- 65%–166%
- Held a regular role (900+ min)
- 78%
- 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.
| Season | Club | League | Pos | Apps | Min | Min share | G | A | G+A/90 | Adj. G+A/90 | Opp. Elo | Team Elo | League str. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025/26 | FC Groningen | Eredivisie | CB | 31 | 2724 | 89% | 2 | 2 | 0.13 | 0.13 | 1292 | 1248 | 0.43 |
| 2024/25 | Ajax Amsterdam | Eredivisie | CB | 5 | 329 | 11% | 0 | 0 | 0.00 | 0.03 | 1189 | 1505 | 0.50 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2025/26 | Knvb Beker | FC Groningen | 1 | 90 | 0 | 0 | — |
| 2024/25 | Uefa Europa League | Ajax Amsterdam | 1 | 78 | 0 | 0 | 1559 |
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) | Age | Value then | ~2y later | Outcome |
|---|---|---|---|---|
| Louis Patris Jupiler Pro League · 2023 | 22 | €3.0M | €2.0M | fell |
| Gabriel Pereira Liga Portugal · 2024 | 24 | €4.0M | €6.0M | rose |
| Eren Elmalı Super Lig · 2022 | 22 | €3.2M | €4.0M | rose |
| Jaka Bijol Premier Liga · 2022 | 23 | €3.5M | €10.0M | rose |
| Tobias Slotsager Superliga · 2024 | 18 | €2.2M | €3.0M | rose |
| Emin Bayram Jupiler Pro League · 2024 | 21 | €4.0M | €4.0M | flat |
| Yukhym Konoplya Premier Liga · 2021 | 22 | €2.5M | €4.0M | rose |
| Bryan Reynolds Jupiler Pro League · 2023 | 22 | €4.0M | €3.5M | flat |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 30 Jun 2026 | FC Groningen | Ajax U21 | Free / loan | €6.5M |
| 19 Aug 2025 | Ajax U21 | FC Groningen | Free / loan | €900k |
| 1 Jul 2024 | Ajax U18 | Ajax U21 | Unknown | €300k |
| 1 Jul 2023 | Ajax U17 | Ajax U18 | Unknown | Data unavailable |
| 1 Jul 2022 | Ajax Youth | Ajax U17 | Unknown | Data unavailable |
| 1 Jul 2020 | Sparta Youth | Ajax Youth | €28k | Data unavailable |
| 1 Jul 2018 | JVOZ Youth | Sparta Youth | Free / loan | Data unavailable |
| 1 Jul 2017 | Kloetinge Yth. | JVOZ Youth | Free / loan | Data 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.