
Aderllan Santos
Value picture
Where the market, the likely price and the model estimates sit.
The model rates Aderllan Santos's performance-implied value at EUR 0.1M-0.4M, above the estimated acquisition range of EUR 0.0M-0.2M. Its 24-month market value projection is EUR 0.1M-0.1M. Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Acquisition note: Contract end date unavailable: range widened by 15% each side.
Bargain Index: not assigned
What drives the score. Not a black box: each component and its level.
Market value below EUR 250k (outside validated pool)
| Performance | Below average | 33th pct among DEF peers (age-neutral) |
| Age | Unfavorable | 37.2 years |
| Acquisition cost | Neutral | est. €95k vs market €100k |
| Expected appreciation | Neutral | +9% over ~2 years (model) |
| Value gap | Large | weak predictor on its own |
| Development | Low | |
| League translation | Moderate | league coefficient 0.58 |
| Tactical fit | Not evaluated | Requires event/role data not available from the current free source. |
| Risk | Very 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
- 1032 (34% of available)
- Goals + assists / 90
- 0.09
- Context-adjusted G+A / 90
- 0.13
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 33 (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
- 0.58 (rank 9)
- Team strength (Elo)
- 1182
- Opponent strength
- 1326
- 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)
- €76k – €111k
Trajectory drivers: minutes share down 38 pts; changed club; relative output up 87% vs positional peers.
Historical comparables (8): median 2-year value change +0% (IQR -32% to +0%).
Risk profile
Overall: Very High
- ▲Age 37: resale value typically declines.
- ⚠Limited sample: 1032 league minutes last season.
- ⚠League level coefficient 0.58 (1.00 = big-five average): output may not translate.
- ⚠No continental-competition minutes last season.
- ⚠Played under 40% of available league minutes (injury data unavailable, cause unknown).
- ⓘContract end date unavailable (or stale in source).
- ⓘ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
- 66 (DEF)
- Relative output kept
- 57%–168%
- Held a regular role (900+ min)
- 76%
- 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 | Avs Futebol | Liga Portugal | CB | 17 | 1032 | 34% | 1 | 0 | 0.09 | 0.13 | 1326 | 1182 | 0.58 |
| 2024/25 | Rio Ave FC | Liga Portugal | CB | 18 | 1582 | 52% | 0 | 1 | 0.06 | 0.07 | 1361 | 1270 | 0.51 |
| 2024/25 | Avs Futebol | Liga Portugal | CB | 10 | 599 | 20% | 0 | 0 | 0.00 | 0.06 | 1362 | 1154 | 0.51 |
| 2023/24 | Rio Ave FC | Liga Portugal | CB | 32 | 2848 | 93% | 3 | 0 | 0.09 | 0.10 | 1380 | 1317 | 0.58 |
| 2022/23 | Rio Ave FC | Liga Portugal | CB | 32 | 2824 | 92% | 1 | 0 | 0.03 | 0.05 | 1397 | 1329 | 0.68 |
| 2020/21 | Rio Ave FC | Liga Portugal | CB | 32 | 2790 | 91% | 2 | 0 | 0.06 | 0.07 | 1354 | 1320 | 0.61 |
| 2019/20 | Rio Ave FC | Liga Portugal | CB | 30 | 2668 | 87% | 0 | 0 | 0.00 | 0.02 | 1386 | 1412 | 0.59 |
| 2016/17 | Valencia CF | Laliga | CB | 12 | 1001 | 29% | 0 | 0 | 0.00 | 0.03 | 1546 | 1499 | 1.11 |
| 2015/16 | Valencia CF | Laliga | CB | 17 | 1520 | 44% | 0 | 0 | 0.00 | 0.03 | 1610 | 1556 | 1.17 |
| 2015/16 | SC Braga | Liga Portugal | CB | 2 | 180 | 6% | 0 | 0 | 0.00 | 0.05 | 1361 | 1440 | 0.58 |
| 2014/15 | SC Braga | Liga Portugal | CB | 31 | 2742 | 90% | 3 | 0 | 0.10 | 0.09 | 1401 | 1457 | 0.68 |
| 2013/14 | SC Braga | Liga Portugal | CB | 26 | 2236 | 83% | 3 | 0 | 0.12 | 0.11 | 1451 | 1427 | 0.74 |
| 2012/13 | SC Braga | Liga Portugal | CB | 9 | 810 | 30% | 1 | 0 | 0.11 | 0.07 | 1396 | 1533 | 0.86 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2020/21 | Uefa Europa League Qualifying | Rio Ave FC | 3 | 330 | 0 | 0 | 1466 |
| 2016/17 | Copa Del Rey | Valencia CF | 3 | 140 | 0 | 0 | — |
| 2015/16 | Copa Del Rey | Valencia CF | 6 | 540 | 0 | 0 | — |
| 2015/16 | Uefa Champions League | Valencia CF | 2 | 180 | 0 | 0 | 1481 |
| 2015/16 | Uefa Europa League | Valencia CF | 2 | 180 | 1 | 0 | 1592 |
| 2013/14 | Uefa Europa League Qualifying | SC Braga | 2 | 210 | 0 | 0 | 1395 |
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 |
|---|---|---|---|---|
| Oleksandr Kucher Super Lig · 2019 | 37 | €100k | €100k | flat |
| Steven Vitória Liga Portugal · 2024 | 37 | €100k | €50k | fell |
| Michel Breuer Eredivisie · 2018 | 38 | €100k | €100k | flat |
| Adrián Lucero Super League 1 · 2020 | 36 | €200k | €150k | fell |
| Marcelo Oliveira Liga Portugal · 2017 | 36 | €100k | €50k | fell |
| Jorge Teixeira Jupiler Pro League · 2023 | 37 | €100k | €100k | flat |
| Yalcin Ayhan Super Lig · 2019 | 37 | €50k | €50k | flat |
| Vincent Sasso Liga Portugal · 2024 | 33 | €200k | €200k | flat |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 23 Jan 2025 | Rio Ave | Avs FS | Free / loan | €200k |
| 1 Jul 2020 | Al-Ahli | Rio Ave | Free / loan | €2.0M |
| 30 Jun 2020 | Rio Ave | Al-Ahli | Free / loan | €2.0M |
| 13 Aug 2019 | Al-Ahli | Rio Ave | Free / loan | €2.5M |
| 28 Jan 2019 | Valencia | Al-Ahli | €5.0M | €2.5M |
| 31 Dec 2018 | EC Vitória | Valencia | Free / loan | €2.5M |
| 24 Apr 2018 | Valencia | EC Vitória | Free / loan | €3.0M |
| 23 Apr 2018 | São Paulo | Valencia | Free / loan | €3.0M |
| 15 Jul 2017 | Valencia | São Paulo | Free / loan | €3.5M |
| 27 Aug 2015 | Braga | Valencia | €9.5M | €7.5M |
| 1 Jul 2013 | Braga B | Braga | Unknown | €500k |
| 1 Jul 2012 | Trofense | Braga B | Unknown | €350k |
| 1 Jul 2010 | Salgueiro | Trofense | Unknown | 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.