The Maritime Professional Hockey League (MaPHL) was a professional men's ice hockey league operating in New Brunswick and Nova Scotia from around 1911 until 1914. Two of the league's champions challenged for the Stanley Cup. The league was preceded in 1910–11 by the Interprovincial Professional Hockey League and followed in 1914–15 by the Eastern Professional Hockey League.
Originally the Maritime Hockey League, the loop was created as an amateur ice hockey league operating in Nova Scotia around 1900. The league is notable for having several teams challenge for the Stanley Cup.
As part of the general progression of elite ice hockey leagues to paid professionals in the time period around 1910, the league made the switch official in 1910, calling itself the Interprovincial Professional Hockey League. The name changed again in 1911 to the Maritime Professional Hockey League and once again in 1914 to the Eastern Professional Hockey League. The EPHL suspended operations on February 7, 1915 after having shrunk to only two teams.
In September 1913, the MaPHL arranged with the NHA and the Pacific Coast Hockey Association (PCHA) for the formation of a hockey commission to govern inter-league operations, contract issues and the play of the Stanley Cup between the league champions. In 1914, it was expected that the MaPHL champion would play the Toronto Blueshirts of the NHA for the Stanley Cup, but this was cancelled and Maritime champions did not play for the Stanley Cup again.
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