Depending on the design problem they address, design patterns can be classified in different categories, of which the main categories are: 1  Creational Patterns. 2  Structural Patterns. 3  Behavioral Patterns.
In the 35 nine-inning games played through last night, the average length of a MLB game has been 2 hours, 52 minutes , according to Michael Teevan, spokesperson for Major League Baseball.
The average time of a Major League Baseball game was 2 hours and 54 minutes 2001; 2 hours and 52 minutes in in 2002 and 2 hours and 46 minutes in 2003. The figures remained similar through the 2006 season.