how many plays can you challenge in mlb
Instant replay in Major League Baseball The current instant replay system was implemented in the 2014 season. Under the current system each manager is allotted one challenge per game, with additional challenges granted only if the previous one was successful. From the eighth inning on, the umpire crew chief is allowed to initiate his own replay review. The umpire crew chief is also allowed to initiate a review during any inning if the play in question is a boundary home run call.
Official game Since most professional baseball games are nine innings long, the fifth inning is used as the threshold for an official game. If the visiting team is leading, or the game is tied, the end of the fifth inning marks this point. If the home team (which bats last) is already ahead in the score, and theoretically would not need its half of the fifth inning, then 4Â½ innings (i.e., the middle of the fifth) is considered an official game. The game is also considered official if the home team scores to take the lead in the bottom of the fifth inning, since the game would end immediately if the same thing happened in the ninth.