Which leagues field the youngest players?
Average age of the players who actually appeared, season by season. A young league is usually a selling one.
King's Cup (Saudi Arabia) is the youngest of the lot: 30.53 years on average.
| League | Average age | Player-seasons |
|---|---|---|
| 1. King's Cup Saudi Arabia | 30.53 | 5,900 |
| 2. Cup Greece | 29.58 | 5,200 |
| 3. Paraense Brazil | 29.04 | 9,200 |
| 4. Super League China | 28.97 | 35,700 |
| 5. Liga Nacional Guatemala | 28.97 | 16,300 |
| 6. Gaúcho - 1 Brazil | 28.81 | 11,400 |
| 7. Thai League 1 Thailand | 28.78 | 37,600 |
| 8. CONMEBOL Libertadores International | 28.65 | 78,800 |
| 9. Serie A Brazil | 28.55 | 43,300 |
| 10. FIFA Intercontinental Cup International | 28.53 | 7,900 |
| 11. Copa Verde Brazil | 28.46 | 36,000 |
| 12. AFC Champions League Two International | 28.41 | 49,200 |
| 13. Serie C Brazil | 28.4 | 35,100 |
| 14. Copa Do Brasil Brazil | 28.38 | 105,000 |
| 15. Paulista - A1 Brazil | 28.31 | 31,100 |
| 16. Primera División Chile | 28.29 | 31,400 |
| 17. CONMEBOL Sudamericana International | 28.26 | 92,200 |
| 18. Primera División Bolivia | 28.21 | 35,900 |
| 19. Alagoano Brazil | 28.16 | 13,500 |
| 20. Serie B Brazil | 28.16 | 47,400 |
| 21. 1. Division Cyprus | 28.14 | 25,600 |
| 22. FIFA Club World Cup International | 28.12 | 41,500 |
| 23. AFC Champions League Elite International | 28.12 | 50,300 |
| 24. Piauiense Brazil | 28.12 | 17,700 |
| 25. UEFA Championship - Women International | 28.08 | 5,000 |
| 26. Premier Soccer League South Africa | 28.06 | 33,900 |
| 27. J1 League Japan | 28.01 | 47,300 |
| 28. Carioca - 1 Brazil | 28.01 | 26,700 |
| 29. Copa do Nordeste Brazil | 28 | 47,800 |
| 30. Primera División Peru | 27.88 | 48,600 |
| 31. CONCACAF Gold Cup - Qualification International | 27.87 | 9,400 |
| 32. UEFA Europa Conference League International | 27.87 | 104,300 |
| 33. Super League 1 Greece | 27.87 | 28,100 |
| 34. Cup Kazakhstan | 27.81 | 21,300 |
| 35. Stars League Qatar | 27.8 | 15,800 |
| 36. Baiano - 1 Brazil | 27.78 | 22,300 |
| 37. Pernambucano - 1 Brazil | 27.77 | 20,100 |
| 38. Goiano - 1 Brazil | 27.7 | 29,300 |
| 39. Serie D Brazil | 27.68 | 107,000 |
| 40. Premier League Kazakhstan | 27.68 | 27,700 |
Showing every competition. Major competitions only
Age is taken from the year of birth against the season played, not from the profile — that carries the age today, which for an old season would be a decade out. Only players with an appearance count.