Best U23 Young Goalkeepers in the Ligue 1
5 players aged 23 or under · ranked by Analytical Strength Score
Best Young Goalkeepers in the Ligue 1 (Apr 2026)
Ranked by Analytical Strength Score
Market Overview: Ligue 1 Young Goalkeepers 2025-26
Our database tracks 5 Ligue 1 Young Goalkeepers in the 2025-26 season, representing 5 clubs with a combined market value of €34.1M. The average market value for Ligue 1 Young Goalkeepers is €6.8M, with the average age at 20.8 years old.
The most valuable young goalkeeper in the Ligue 1 is Guillaume Restes, worth €20.0M and playing for FC Toulouse at 21 years old. The top 5 Young Goalkeepers average €6.8M in market value, including Mike Penders and Robin Risser.
Age distribution shows the youngest tracked young goalkeeper is Renato Marin (19 years, Paris Saint-Germain, €500K), while the oldest is Ousmane Ba (23 years, FC Metz, €150K). Research shows Young Goalkeepers typically peak at age 29.
Our 1-year forecast model projects 5 Young Goalkeepers (100%) will increase in market value over the next 12 months based on age-curve trajectories, current performance trends, and playing time analysis. The Ligue 1 market for Young Goalkeepers remains actively developing with emerging talent in the 2025-26 season.
💡 Use the search bar below to find specific players, or apply filters to narrow results by club, age range, or market value. Click the chart icon next to any player to view their historical value trajectory and forecast.
Explore Market Size by Position in Ligue 1
Interactive bubble chart showing predicted 2-year growth vs current age for all Ligue 1 Young Goalkeepers. Identify undervalued assets and track market momentum across 5 clubs with €34.1M combined value.
Age Distribution: Ligue 1 Young Goalkeepers
The Ligue 1 GK market shows 2 distinct age segments, with the largest cohort in the 21-23 bracket (3 players, 60% of market). The 21-23 age group holds the most value at €21.6M, averaging €7.2M per player.
Top Young Goalkeepers by Age Bracket
U21 Years (2 players)
21-23 Years (3 players)
Market Value Distribution
Elite Tier Concentration
The top 1 Young Goalkeepers (20% of players) control €20.0M
Market Tiers
Market structure shows distributed value with high (€15-30m) tier representing 20% of the Ligue 1 GK pool.
High (€15-30M)
Mid (€5-15M)
Emerging (<€5M)
Club Distribution: Ligue 1 Young Goalkeepers
Among 5 Ligue 1 clubs, FC Toulouse leads with 1 Young Goalkeepers worth €20.0M (averaging €20.0M per player). The top 10 clubs account for 100% of tracked Young Goalkeepers.
FC Toulouse (1 Young Goalkeepers)
RC Strasbourg Alsace (1 Young Goalkeepers)
RC Lens (1 Young Goalkeepers)
Paris Saint-Germain (1 Young Goalkeepers)
Player Rankings
Ranked by APE Strength Score. Click any player to view full profile, or click the chart icon to see value history.
Guillaume Restes
FC Toulouse • 21 years old
€17.3M
€20.0M
+15.6%
Expected: €24.7M
73.9
Mike Penders
RC Strasbourg Alsace • 20 years old
€10.4M
€12.0M
+15.6%
Expected: €15.3M
67.1
Robin Risser
RC Lens • 21 years old
€1.3M
€1.5M
+15.6%
Expected: €1.9M
33.7
Renato Marin
Paris Saint-Germain • 19 years old
€432K
€500K
+15.6%
Expected: €698K
19.3
Ousmane Ba
FC Metz • 23 years old
€130K
€150K
+15.6%
Expected: €172K
4.3
Scout Tools
Advanced analytics for scouting and recruitment decisions. Each tool provides unique insights into player value, potential, and market dynamics.
Pre-Peak Value Efficiency (PPVE)
Identifies pre-peak players offering exceptional value relative to their age bracket. Higher PPVE = better value.
Understanding Pre-Peak Value Efficiency (PPVE)
FC Toulouse's Guillaume Restes at 21 years old has the highest Pre-Peak Value Efficiency at 13.33×. That means Guillaume Restes is valued 13.33× higher than the median player in the 21-23 age bracket—representing exceptional value before reaching peak age.
In second is RC Lens's Robin Risser, who is 21 years old, with a 1.00× PPVE. Third is Mike Penders of RC Strasbourg Alsace, who is 20 years old with a 1.00× PPVE.
How PPVE is calculated: PPVE compares a player's current market value to the median value of all players in their age bracket. A PPVE of 13.33× means the player is worth 1233% more than typical players their age—making them high-value targets before they reach peak value.
PPVE by Age Bracket
| Rank | Player | Age | Bracket | Current Value | Bracket Median | PPVE |
|---|---|---|---|---|---|---|
| #1 | Guillaume Restes FC Toulouse | 21 | 21-23 | €20.0M | €1.5M | 13.33× |
| #2 | Robin Risser RC Lens | 21 | 21-23 | €1.5M | €1.5M | 1.00× |
| #3 | Mike Penders RC Strasbourg Alsace | 20 | U21 | €12.0M | €12.0M | 1.00× |
| #4 | Ousmane Ba FC Metz | 23 | 21-23 | €150K | €1.5M | 0.10× |
| #5 | Renato Marin Paris Saint-Germain | 19 | U21 | €500K | €12.0M | 0.04× |
Return-to-Peak Potential (RPP)
Recovery potential from current value to forecasted peak. Shows how much upside remains for players approaching their prime.
Understanding Return-to-Peak Potential (RPP)
Paris Saint-Germain's Renato Marin at 19 years old has the highest Return-to-Peak Potential at +52%. That means Renato Marin is projected to appreciate 52% as they reach their peak age in 7 years—representing significant upside before entering their prime.
In second is RC Strasbourg Alsace's Mike Penders, who is 20 years old, with a +48% RPP (6 years to peak). Third is Robin Risser of RC Lens, who is 21 years old with a +44% RPP (5 years to peak).
How RPP is calculated: RPP compares a player's current market value to their forecasted peak value, calculating the percentage appreciation potential. A 52% RPP means the player is expected to gain 52% value as they enter their prime—making them excellent growth investments.
Recovery Potential by Player
| Rank | Player | Age | Years to Peak | Current | Peak Forecast | RPP % |
|---|---|---|---|---|---|---|
| #1 | Renato Marin Paris Saint-Germain | 19 | 7 | €500K | €1.0M | +52% |
| #2 | Mike Penders RC Strasbourg Alsace | 20 | 6 | €12.0M | €23.1M | +48% |
| #3 | Robin Risser RC Lens | 21 | 5 | €1.5M | €2.7M | +44% |
| #4 | Guillaume Restes FC Toulouse | 21 | 5 | €20.0M | €35.7M | +44% |
| #5 | Ousmane Ba FC Metz | 23 | 3 | €150K | €232K | +35% |
Risk-Adjusted Upside (RAU)
Upside potential weighted against forecast uncertainty. Higher RAU = better risk-reward profile.
Understanding Risk-Adjusted Upside (RAU)
Paris Saint-Germain's Renato Marin has the highest Risk-Adjusted Upside at 154.3. That means Renato Marin has 40% upside potential with only 0% forecast uncertainty—representing excellent risk-reward for value appreciation.
In second is RC Strasbourg Alsace's Mike Penders with a 118.5 RAU (28% upside, 0% uncertainty). Third is Robin Risser of RC Lens with a 103.3 RAU (23% upside, 0% uncertainty).
How RAU is calculated: RAU divides upside potential by forecast uncertainty (RAU = Upside % ÷ Uncertainty %). A RAU of 154.3 means the upside is 154.3× greater than the uncertainty—making it a high-confidence growth opportunity. Target RAU ≥2.0 for balanced risk-reward.
Risk-Adjusted Upside by Player
| Rank | Player | Expected | Range | Upside % | RAU |
|---|---|---|---|---|---|
| #1 | Renato Marin Paris Saint-Germain | €698K | €634K-762K | +40% | 154.3 |
| #2 | Mike Penders RC Strasbourg Alsace | €15.3M | €13.9M-16.8M | +28% | 118.5 |
| #3 | Robin Risser RC Lens | €1.9M | €1.7M-2.0M | +23% | 103.3 |
| #4 | Guillaume Restes FC Toulouse | €24.7M | €22.4M-27.0M | +23% | 103.3 |
| #5 | Ousmane Ba FC Metz | €172K | €158K-186K | +15% | 79.9 |
Roster Pressure Index (RPI)
Squad depth pressure based on Z-score distribution. Negative RPI = thin depth, positive = deep roster.
What This Shows
Z-Score explained: Measures how many standard deviations a player's strength is from the position average. Z-Score = 0 means average, +1.0 is one standard deviation above average, -1.0 is below average.
How to use: RPI < -1.0 indicates critical depth shortage. These positions need immediate reinforcement. RPI > +1.0 suggests strong depth, allowing selective, high-value additions only.
Current market: young goalkeeper position shows strong depth (avg Z-score: 0.00). RPI: 0.00.
Position Depth Analysis
Highest Z-Scores
Lowest Z-Scores
Age-Share Concentration (ASC)
Identifies players capturing disproportionate value relative to age group representation. Positive ASC = value concentration.
Understanding Age-Share Concentration (ASC)
Paris Saint-Germain's Renato Marin in the U21 age bracket has the highest Age-Share Concentration at +-3.4%. That means Mike Penders captures 36.6% of total market value while representing only 40.0% of players in their age group—showing dominant elite status.
In second is RC Strasbourg Alsace's Mike Penders with a +-3.4% ASC (36.6% value share vs 40.0% player share in U21 bracket). Third is Ousmane Ba of FC Metz with a +3.4% ASC (63.4% value vs 60.0% players in 21-23 bracket).
How ASC is calculated: ASC = (% of total value) - (% of total players) in age bracket. A +-3.4% ASC means the player captures -3.4% more market value than their numerical representation—indicating marquee status. ASC > +15% = elite dominance, ASC < -15% = potential value targets.
Value Concentration by Player
| Rank | Player | Age Bracket | Value Share | Player Share | ASC |
|---|---|---|---|---|---|
| #1 | Renato Marin Paris Saint-Germain | U21 | 36.6% | 40.0% | -3.4% |
| #2 | Mike Penders RC Strasbourg Alsace | U21 | 36.6% | 40.0% | -3.4% |
| #3 | Ousmane Ba FC Metz | 21-23 | 63.4% | 60.0% | +3.4% |
| #4 | Robin Risser RC Lens | 21-23 | 63.4% | 60.0% | +3.4% |
| #5 | Guillaume Restes FC Toulouse | 21-23 | 63.4% | 60.0% | +3.4% |
Buy-Now vs Wait-List Map
Categorizes players by age position and upside potential to guide timing of acquisition.
What This Shows
How to use: "Buy Now - High Upside" = immediate priority targets. "Watch List" = monitor for 6-12 months. "Peak" = pay premium for proven performers. "Aging" = short-term depth only.
Current market: 4 immediate targets, 1 standard acquisitions, 0 watch-list prospects, 0 at peak.
BUY NOW - High Upside
WATCH LIST - High Upside
No players in this category
BUY NOW - Medium Upside
PEAK Players
No players in this category
Price vs Peer Z-Score
IQR-based pricing analysis relative to position peers. Identifies over/undervalued players vs market.
What This Shows
How to use: Z-score < -1.5 = significantly undervalued (potential bargain). Z-score > +1.5 = premium pricing (requires strong justification). Within ±1.0 = fair market value.
Current market: Position median is €20.0M. 0 undervalued, 0 premium.
Value Positioning vs Peers
| Player | Market Value | Position Median | Z-Score | Assessment |
|---|---|---|---|---|
Ousmane Ba FC Metz | €150K | €1.5M | -1.00 | Good Value |
Renato Marin Paris Saint-Germain | €500K | €1.5M | 0.00 | Fair Value |
Robin Risser RC Lens | €1.5M | €1.5M | 0.00 | Fair Value |
Mike Penders RC Strasbourg Alsace | €12.0M | €1.5M | 0.00 | Fair Value |
Guillaume Restes FC Toulouse | €20.0M | €1.5M | 0.00 | Fair Value |