Rookie Eligibility
Definition
A player shall be considered a rookie unless he has exceeded any of the following thresholds in a previous season (or seasons):
? 130 at-bats or 50 innings pitched in the Major Leagues.
? 45 total days on an active Major League roster during the Championship Season (excluding time on the Injured List).
A player must have rookie eligibility to be considered for any MLB rookie awards -- such as the American League or National League Rookie of the Year Award -- or appear on any MLB Pipeline prospect lists.