Mackenzie Stadium is a baseball venue located in Holyoke, Massachusetts. It was home to the Holyoke Millers and today is used by both the Valley Blue Sox of the New England Collegiate Baseball League (since 2008) and the Elms College Blazers of the New England Collegiate Conference (since 2005). It was built in 1933 and has a capacity of 4,100 people. Mackenzie Stadium hosted the 2009 NECBL All-Star Game on July 18, 2009. The game, attended by an All-Star Game record 4,906 fans, was won by the host West Division 6–5.