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.
In the later years it even has the average length of a minor league at the different levels. At the major league level, games are running longer by the year after a downward curve. In 2000, games were 3.02 hours long. By 2004, that had dipped to 2.85 hours on average. In 2009, it was 2.92. But by last year it was up to 3 hours and 4 minutes per.