Age | 15 years | 165 |
16 years | 640 | |
17 years | 481 | |
Mean age (years) | 16.2 ± 0.7 | |
Gender | | 1288 |
Female | 0 | |
Mean age of initiation into baseball (years) | 9.6 ± 2.2 | |
Main position | Pitcher | 292 |
Catcher | 135 | |
Infielder | 480 | |
Outfielder | 356 | |
Others | 25 | |
Total amount of practice per week | Days | 6.5 ± 0.6 |
Hours | 27.2 ± 7.5 |