The Houston Astros, originally called the "Colt .45s", are a Major League Baseball (MLB) franchise based in Houston, Texas. They play in the American League West division. Since the institution of Major League Baseball's Rule 4 Draft, the Astros have selected 57 players in the first round. Officially known as the "First-Year Player Draft", the Rule 4 Draft is Major League Baseball's primary mechanism for assigning amateur baseball players from high schools, colleges, and other amateur baseball clubs to its franchises. The draft order is determined based on the previous season's standings, and the team that had the worst record receives the first pick. In addition, teams which lost free agents in the previous off-season may be awarded compensatory or supplementary picks. The First-Year Play