In Major League Baseball (MLB), a game seven can occur in the World Series or in a League Championship Series (LCS), which are contested as best-of-seven series. Based on the playoffs format arrangement, game seven â when necessary â is played in the ballpark of the team holding home-field advantage for the series.
The World Series first employed a best-of-seven format in . That format has been used annually since then, with three exceptions: , , and , which were contested as best-of-nine series. While it was played with the best-of-seven format, the World Series went to eight games due to one of the earlier games ending in a tie, necessitating a tiebreaker.
The League Championship Series began as best-of-five series, in both the American League and the National League, in . Since the season, they have used a best-of-seven format.
A game seven cannot occur in earlier rounds of the MLB postseason, as the Division Series (best-of-five) and Wild Card Series (best-of-three) use shorter formats.