Would you like to let me know about the play-off games of American Baseball in brief? How many teams play with one another after the regular baseball season?

This article explains the play-off games.

http://baseball.about.com/od/seasonstructur1/tp/playoffsformat.htm

Of course! In Major League Baseball (MLB), after the regular season, the playoffs begin to determine the champion of the league. The playoffs consist of several rounds, where teams compete against each other with the goal of reaching the World Series.

The MLB playoffs involve a total of 10 teams, five from each league - the American League (AL) and the National League (NL). These teams are determined based on their performance during the regular season, with the division winners and a few wild card teams earning a spot.

The playoffs typically start with the Wild Card games, which are a one-game playoff between two wild card teams in each league. This allows two additional teams from each league to enter the playoffs. The winners of the Wild Card games move on to the Division Series.

Next, the Division Series features best-of-five series, with the three division winners and the team that advanced as the Wild Card winner. The two winners from each Division Series then proceed to the League Championship Series.

The League Championship Series is a best-of-seven series in which the two remaining teams in each league compete for the league championship. The winners of the League Championship Series in both the AL and NL advance to the ultimate showdown - the World Series.

The World Series is the culmination of the MLB playoffs and involves the champions of the American League and National League. It is a best-of-seven series, with the team that wins four games crowned as the World Series champion.

So, in summary, after the regular season, 10 MLB teams compete in the playoffs, which consist of the Wild Card games, Division Series, League Championship Series, and the final round, the World Series.