Manitoba Senior AAA = History = From 1955 through 1964 , 10 straight years , the Winnipeg Maroons were Manitoba ’ s only senior A hockey team . It was automatic , they represented Manitoba in Allan Cup playoffs . In 56 - 57 , when the Maroons did not compete , Manitoba had no representative . During this time span the Maroons played a make shift schedule , representing Manitoba nine times , and winning three Patton Cup s , as Western Canada Champion . After the 64 season , the Maroons joined with the Canadian National Team , who had just relocated to Winnipeg . Needing an Allan Cup representative , Manitoba turned to the Manitoba Intermediate AA Hockey League . For 65 - 66 , the Manitoba Senior Hockey League was reborn , and the Maroons were back . The League lasted six seasons , but in its final season , only half of the Leagues 4 teams register as Seniors . The other half as Intermediate . This caused the Manitoba Amateur Hockey Association to pull the Provincial Championship . The Maroons return was shorted lived , lasting only 2 seasons , before the team relocated to St . Boniface , becoming the St . Boniface Mohawks . The Maroons left as Manitoba champs in 67 , and in 68 , the Mohawks continued the winning tradition capturing both the Manitoba Championship , and the Western Canada title in their inaugural season . The Mohawks would go on to win 3 Manitoba Championships in their first 4 seasons . In 69 , Warroad Lakers became the first United States based team to win the Pattison Cup . During the next four years , 1972 - 75 , the Mohawks played off only once , against the East Kildonan Screaming Eagles in 73 , for the Provincial crown . Representing Manitoba all four years , and winning the Patton Cup in 73 . In 76 , the creation of the Central Amateur Senior Hockey League ushered in a new era of stability . The League existed for 16 seasons , crowning Manitoba ’ s champ in each of them . CASHL teams captured 7 Patton Cups , the Steinbach Huskies were the first in 79 , followed by a pair from St . Boniface in 81 & 83 . The powerhouse Thunder Bay Twins not only collected Pattons , but Allan Cups as well . Winning both in 84 , 85 , 88 , & 91 . At it ' s demise , the Central Amateur Senior Hockey League was Canada ’ s last true Senior Hockey League . For the next three years , 1992 - 94 , the Warroad Lakers and the St . Boniface Mohawks played off for the Provincial Championship , Warroad won all three . Both played an exhibition schedule during the regular season . Prior to the 93 - 94 season , the Mohawks announced that " ‘ this year would be their last ’ " . Warroad hosted the 94 Allan Cup , both the Lakers and Mohawks qualified and met in the championship game . Warroad won the Cup . St . Boniface Mohawks in 27 years , represented Manitoba 14 times in Allan Cup play , winning 4 Patton Cups . In 95 & 96 , tournaments were held to crown a Provincial champion , with Warroad winning both . The Lakers would win their last championship in 97 , defeating the Ile des Chenes North Stars in a Provincial playoff . Warroad Lakers won three straight Allan Cups and were gunning for a four peat in their 50th and last year . Ile des Chenes would represent Manitoba for the next two years , the province ’ s only senior team in 1998 , and winning a play - off in 99 with Peguis Mohawks . = Categories = This category of hockey was called : Currently Senior AAA , since 1983 = Championships = Manitoba Senior Hockey Champions . Pattison Cup , first awarded in 1902 . Note : 1923 to 1925 & from 1928 to 1929 this was a combined Manitoba / Northwest Ontario champship . Western Canada Senior Hockey Champions . Patton Cup ( 1925 to 1991 ) Canada Senior Hockey Champions . Allan Cup = Leagues = Note : ( ) Reflects years not seasons , years reflect awarding of Manitoba Championship . ( list : 1918 to 2016 ) Notes : ( ) Reflects years not seasons , years reflect League Team ( s ) involvement . ( list : 1939 to 2016 )