Baseball for youths in Dominican Republic:

I am currently conducting a research project (on a phenomenon termed the relative age effect) for which I require some information regarding the youth age group cut-off date for male baseball players in the Dominican Republic.

An example from England is that soccer players there born between the youth age group cut-off date of Sept 1st and Aug 31st are eligible to play in the same age group team (e.g., players born between the youth age group cut-off date of Sept 1st 1998 and Aug 31st 1999 play under-10 category).

Please could someone tell me the youth age group cut-off date for selection into the various youth age groups for male baseball players in the Dominican Republic? Also, please could you tell me if any changes have occurred to that date over the past 25 years, and if so, when this change occurred and what the date was prior to this change?

Many thanks for any help you can provide,

Dr Paul Ford.