They play in the Heritage Junior B Hockey League, from the Medicine Hat Kinplex.
The Cubs were founded in 1973 into the Heritage Junior B Hockey League.
In their fifth year, 1977–78, they won the league championship for the first time, repeating as champions the next season.
In this time two Cubs players went on to play in the National Hockey League (Blaine Lacher and Murray Craven) Since the 2001 season the Cubs have more or less struggled compared to former seasons, including some highly rough recent[when?]
[1] The Cubs took a mid-season leave of absence in January 2016 after deciding not to finish out the 2015–16 season with too few players.