<P> 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 41⁄2 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 . </P> <P> In nearly all cases, the "official game" status is used to determine whether a rain check will be honored for fans holding tickets . If a game is started but does not reach the point of becoming official, fans are entitled to a new ticket for the make - up game or (in most modern cases) any other available game of their choice . If a game is halted after it becomes official, the game is simply shortened and no rain check is given . </P> <P> The "official game" statistic received some attention during the 1995 season, when Cal Ripken, Jr. was approaching the record for consecutive games played, previously held by Lou Gehrig . Large numbers were hung on the side of the B&O Warehouse at Oriole Park at Camden Yards to show the number of games in Ripken's streak . Each day, a new number was unfurled during the fifth inning after each game had become official (since the statistic would not have counted if the game had been stopped before that point). A similar practice has been used to count down toward the demolition of several stadiums (including Veterans Stadium in Philadelphia in 2003, Busch Memorial Stadium in St. Louis in 2005, and the original Yankee Stadium and Shea Stadium in New York City in 2008 and Turner Field in Atlanta in 2016); as each game became official, the team would unveil a new (lower) number showing the number of games left to be played in the stadium . </P> <P> In Major League Baseball playoff games are not complete until the trailing team has batted nine innings . This rule also applies for tiebreaker games for playoff positions . </P>

Mlb how many innings for a game to count