The Amarillo Dillas used to play in the United League Baseball. They were in the league through the 2010 season and they then became the Amarillo Sox.
Here is the most recent trivia question:
- 26 June 2017 : 3 Leagues In Which Massachusetts Mad Dogs Played
Independent Baseball Trivia Question In which three independent baseball leagues did the Massachusetts Mad Dogs play? Answer: North Atlantic League (1996), Northeast League (1997), Northern League (Eastern Division, 1998) http://www.baseball-reference.com/bullpen/Massachusetts_Mad_Dogs
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