The fastest-improving (by % Season change) players from Costa Rica, ranked on Field Insider.
J. Alcócer of KVC Westerlo is the standout for raw talent across players from Costa Rica, with a Field Insider Rating of 59.6, and A. Martínez has been the form player this season, grading 56.8.
The numbers a scout watches are the year-on-year jumps: K. Navas has improved his Season rating most, up +22.1 on last season, while Á. Zamora's scouting Rating has risen fastest, +10.5 over the same span. Those are the players whose trajectory is bending upward fastest.
By our market-value index, B. Aguilera of Rio Ave is the most valuable name in this group at 59.3.
| # | Player | Team | Age | Δ% | Season | Rating |
|---|---|---|---|---|---|---|
| 1 | F. CalvoCentre-back |  Al-Ettifaq | 34 | +55.2 24/25→25/26 | 3955.2% | 228.6% |
| 2 | A. MartínezCentre-forward |  New York City FC | 27 | +27.6 24/25→25/26 | 5727.6% | 418.6% |
| 3 | B. AguileraCentral midfielder |  Rio Ave | 23 | -41.8 24/25→25/26 | 1541.8% | 568.5% |
| 4 | M. UgaldeCentre-forward |  Spartak Moscow | 24 | -47.4 24/25→25/26 | 2747.4% | 357.6% |
| 5 | J. MarínCentral midfielder |  Krylia Sovetov | 28 | -62.9 24/25→25/26 | 862.9% | 2126% |
| 6 | J. CascanteCentre-back |  Austin | 32 | -63.2 24/25→25/26 | 863.2% | 1439.5% |
