
João Mendes
Value picture
Where the market, the likely price and the model estimates sit.
The model rates João Mendes's performance-implied value at EUR 0.4M-0.9M, above the estimated acquisition range of EUR 0.2M-0.7M. Its 24-month market value projection is EUR 0.3M-0.7M. Context-adjusted goal contributions are 0.81x the positional average in the league (1505 minutes, league coefficient 0.40). Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Acquisition note: Final year of contract: selling club's leverage is reduced.
Bargain Index: 42
What drives the score. Not a black box: each component and its level.
| Performance | Below average | 27.7th pct among MID peers (age-neutral) |
| Age | Unfavorable | 31.7 years |
| Acquisition cost | Very favorable | est. €294k vs market €1.0M |
| Expected appreciation | Very low | -54% over ~2 years (model) |
| Value gap | Large | weak predictor on its own |
| Development | Low | |
| League translation | Uncertain | league coefficient 0.4 |
| 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 1163 evaluated MID players with 900+ minutes.
Performance (last season, league)
- Minutes
- 1505 (49% of available)
- Goals + assists / 90
- 0.24
- Context-adjusted G+A / 90
- 0.32
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 28 (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
- 0.40 (rank 18)
- Team strength (Elo)
- 1147
- Opponent strength
- 1259
- 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)
- €310k – €735k
Trajectory drivers: changed club; team strength down (-265 Elo); league level down (-54 Elo).
Historical comparables (8): median 2-year value change -55% (IQR -68% to -13%).
Risk profile
Overall: High
- ⚠Limited sample: 1505 league minutes last season.
- ⚠League level coefficient 0.40 (1.00 = big-five average): output may not translate.
- ⚠No continental-competition minutes last season.
- ⚠Contract ends in 12 months: cheaper, but competition and wage demands likely.
- ⚠Age 32: resale value typically declines.
- ⓘ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
- 35 (MID)
- Relative output kept
- 77%–144%
- Held a regular role (900+ min)
- 69%
- 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 | Kayserispor | Super Lig | AM | 26 | 1505 | 49% | 0 | 4 | 0.24 | 0.32 | 1259 | 1147 | 0.40 |
| 2024/25 | Vitória Guimarães SC | Liga Portugal | AM | 32 | 1532 | 50% | 4 | 3 | 0.41 | 0.34 | 1347 | 1412 | 0.51 |
| 2023/24 | Vitória Guimarães SC | Liga Portugal | LW | 26 | 1453 | 47% | 7 | 3 | 0.62 | 0.56 | 1368 | 1397 | 0.58 |
| 2022/23 | GD Chaves | Liga Portugal | AM | 31 | 2358 | 77% | 2 | 1 | 0.11 | 0.25 | 1412 | 1337 | 0.68 |
| 2020/21 | CD Tondela | Liga Portugal | AM | 6 | 188 | 6% | 0 | 0 | 0.00 | 0.39 | 1322 | 1242 | 0.61 |
| 2018/19 | CD Tondela | Liga Portugal | AM | 3 | 144 | 5% | 0 | 1 | 0.63 | 0.51 | 1373 | 1299 | 0.65 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2024/25 | Uefa Conference League Qualifying | Vitória Guimarães SC | 3 | 79 | 1 | 0 | 1382 |
| 2023/24 | Uefa Conference League Qualifying | Vitória Guimarães SC | 2 | 130 | 0 | 0 | 1235 |
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 |
|---|---|---|---|---|
| Onur Ergün Super Lig · 2023 | 31 | €850k | €325k | fell |
| Gabriel Obertan Super Lig · 2021 | 32 | €400k | €150k | fell |
| Jens Cools Jupiler Pro League · 2022 | 32 | €500k | €100k | fell |
| Flavien Tait Super Lig · 2024 | 31 | €2.0M | €300k | fell |
| Campanharo Super Lig · 2022 | 30 | €1.2M | €1.2M | flat |
| Sammy Clingan Scottish Premiership · 2015 | 31 | €450k | €450k | flat |
| César Pinares Super Lig · 2022 | 31 | €1.5M | €800k | fell |
| Erik Sabo Super Lig · 2022 | 31 | €725k | €600k | flat |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 8 Aug 2025 | Vit. Guimarães | Kayserispor | Free / loan | €2.0M |
| 1 Jul 2023 | Chaves | Vit. Guimarães | Free / loan | €800k |
| 5 Jul 2021 | Tondela | Chaves | Free / loan | €150k |
| 30 Jun 2021 | Estoril | Tondela | Free / loan | €150k |
| 30 Jan 2021 | Tondela | Estoril | Free / loan | €200k |
| 30 Jun 2020 | Coimbra | Tondela | Free / loan | €225k |
| 31 Aug 2019 | Tondela | Coimbra | Free / loan | €200k |
| 1 Jul 2019 | Oliveirense | Tondela | Unknown | €200k |
| 30 Jun 2019 | Tondela | Oliveirense | Free / loan | €200k |
| 2 Jul 2018 | Oliveirense | Tondela | Free / loan | €325k |
| 1 Jul 2016 | Operário | Oliveirense | Free / loan | Data unavailable |
| 1 Jan 2016 | Nogueirense | Operário | Free / loan | Data unavailable |
| 1 Jul 2015 | Gouveia | Nogueirense | Free / loan | Data unavailable |
| 1 Jul 2014 | Gondomar | Gouveia | Free / loan | Data unavailable |
| 1 Jul 2013 | Gondomar U19 | Gondomar | Unknown | Data unavailable |
| 1 Jan 2013 | Leixões U19 | Gondomar U19 | Free / loan | Data unavailable |
| 1 Jul 2011 | Leixões U17 | Leixões U19 | Unknown | Data unavailable |
| 1 Jul 2009 | Leixões U15 | Leixões U17 | Unknown | Data unavailable |
| 1 Jul 2007 | Leixões Yth | Leixões U15 | 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.