Hyun-jun Yang
Value picture
Where the market, the likely price and the model estimates sit.
The model rates Hyun-jun Yang's performance-implied value at EUR 2.1M-10.6M, above the estimated acquisition range of EUR 2.8M-7.0M. Its 24-month market value projection is EUR 2.6M-7.9M. Context-adjusted goal contributions are 0.83x the positional average in the league (1708 minutes, league coefficient 0.31). Confidence is medium: no event-level data (xG, progressive actions) is available from the current free source, and injury history is unavailable.
Bargain Index: 39
What drives the score. Not a black box: each component and its level.
| Performance | Above average | 58th pct among ATT peers (age-neutral) |
| Age | Neutral | 24.1 years |
| Acquisition cost | Neutral | est. €4.8M vs market €5.0M |
| Expected appreciation | Low | -11% over ~2 years (model) |
| Value gap | Small | weak predictor on its own |
| Development | Moderate | |
| League translation | Uncertain | league coefficient 0.31 |
| Tactical fit | Not evaluated | Requires event/role data not available from the current free source. |
| Risk | Moderate | |
| 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 900 evaluated ATT players with 900+ minutes.
Performance (last season, league)
- Minutes
- 1708 (57% of available)
- Goals + assists / 90
- 0.42
- Context-adjusted G+A / 90
- 0.33
- xG, xA, progression
- Data unavailable
- Defensive actions
- Data unavailable
- Performance percentile
- 58 (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
- 0.31 (rank 26)
- Team strength (Elo)
- 1406
- Opponent strength
- 1201
- Possession, role
- Data unavailable
League strength 1.00 = average club of the big-five leagues. Elo includes continental matches.
Potential
- Development
- Moderate
- Trajectory
- improving
- Breakout probability
- Age > 23
- Resale range (24m)
- €2.6M – €7.9M
Trajectory drivers: minutes share up 29 pts; team strength down (-106 Elo); relative output up 29% vs positional peers.
Historical comparables (8): median 2-year value change -28% (IQR -51% to +87%).
Risk profile
Overall: Moderate
- ▲League level coefficient 0.31 (1.00 = big-five average): output may not translate.
- ⚠Limited sample: 1708 league 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
- 12 (ATT)
- Relative output kept
- 75%–114%
- Held a regular role (900+ min)
- 67%
- Confidence
- Low
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 | Celtic FC | Scottish Premiership | RW | 26 | 1708 | 58% | 7 | 1 | 0.42 | 0.33 | 1201 | 1406 | 0.31 |
| 2024/25 | Celtic FC | Scottish Premiership | RW | 20 | 844 | 28% | 4 | 3 | 0.75 | 0.28 | 1171 | 1512 | 0.34 |
| 2023/24 | Celtic FC | Scottish Premiership | RW | 24 | 953 | 32% | 1 | 3 | 0.38 | 0.27 | 1196 | 1511 | 0.34 |
Cups & continental competitions
| Season | Competition | Club | Apps | Min | G | A | Avg opp. Elo |
|---|---|---|---|---|---|---|---|
| 2025/26 | Uefa Europa League | Celtic FC | 7 | 452 | 1 | 0 | 1522 |
| 2025/26 | Scottish Fa Cup | Celtic FC | 3 | 232 | 0 | 1 | — |
| 2025/26 | Uefa Champions League Qualifying | Celtic FC | 2 | 115 | 0 | 0 | 1435 |
| 2025/26 | World Cup | South Korea | 1 | 19 | 0 | 0 | — |
| 2024/25 | Uefa Champions League | Celtic FC | 6 | 154 | 0 | 1 | 1665 |
| 2024/25 | Scottish Fa Cup | Celtic FC | 3 | 134 | 1 | 2 | — |
| 2023/24 | Uefa Champions League | Celtic FC | 4 | 210 | 0 | 0 | 1588 |
| 2023/24 | Scottish Fa Cup | Celtic FC | 2 | 90 | 0 | 0 | — |
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 |
|---|---|---|---|---|
| Pione Sisto Superliga · 2021 | 26 | €4.5M | €2.0M | fell |
| Fotis Ioannidis Super League 1 · 2023 | 23 | €2.5M | €15.0M | rose |
| Gustav Isaksen Superliga · 2022 | 21 | €4.5M | €12.0M | rose |
| Benson Manuel Jupiler Pro League · 2022 | 25 | €3.0M | €5.0M | rose |
| Júnior Brumado Superliga · 2022 | 23 | €2.5M | €800k | fell |
| Doğukan Sinik Super Lig · 2022 | 23 | €4.0M | €2.0M | fell |
| Miroslav Stoch Super League 1 · 2014 | 25 | €5.5M | €4.5M | flat |
| Yann Karamoh Super Lig · 2022 | 24 | €4.0M | €2.5M | fell |
Transfer history
Fees as reported by the source; undisclosed fees shown as unknown, never estimated.
| Date | From | To | Fee | MV at time |
|---|---|---|---|---|
| 15 Jul 2023 | Gangwon FC | Celtic | €2.5M | €700k |
| 7 Jan 2021 | Busan Info. HS | Gangwon FC | Free / loan | Data unavailable |
| 1 Jan 2018 | Geoje P. SC U15 | Busan Info. HS | Unknown | Data unavailable |
| 1 Jan 2015 | Busan Sangri ES | Geoje P. SC 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.