What players are eligible to be ranked and what does PG mean?
“PG” means “Post-Graduated” Prospect – a minor-leaguer who has graduated from prospect “status” due to exhausting his MLB rookie eligibility, but who is still age 25 or younger. When post-grads are returned to the minors, they are reinserted into the rankings where they would have been ranked had they not graduated, but not given an actual rank. For more info on prospect eligibility and abbreviations, check out About this Site.