The number of innings in a Baseball game depends on the level of competition. In Major League Baseball a complete game is normally nine (9) innings. Games that are called due to weather or games that are forfieted can be less than nine (9) innings. Games that go into extra innings can be played until the last out is made or until the winning run is scored.
5 innings
Nine, but if the game is tied it goes into extra innings.
2
7 innings
7 innings unless there is a mercy rule
There are 9 regulation innings. It can go into extra innings if the score is tied.
5 innings
9 innings
Five innings constitute a game of rounders
If a game is tied at the end of regulation innings (9 innings in the MLB), the game will continue for as many innings as necessary until there is a winner. However, local leagues may set maximum innings or time limits.
2
There are 9 innings in college and MLB. There are 7 innings in high school. Either can go into extra innings in case of a tie.