From 1971 to 1978 and from 1982 to 1984, the Centennial Cup pitted the Abbott Cup champion (Western Canada) versus the Dudley Hewitt Cup champion (Eastern Canada). A three-team tournament format, splitting Eastern Canada into two regions, was introduced in 1979 and used until 1981. The Centennial Cup permanently moved back to the tournament format in 1986, with the addition of a predetermined host team to the field. It later expanded to a five-team tournament in 1990 when the Abbott Cup series was discontinued in favour of allowing both the ANAVET and Doyle Cup winners to advance to the national championship. For the 1996 tournament, the trophy gained a sponsor and became the Royal Bank Cup. The ANAVET and Doyle Cups were temporarily replaced by the Western Canada Cup, which determined the two Western seeds for the Royal Bank Cup, from 2013 to 2017. During this time, the Brooks Bandits of the Alberta Junior Hockey League won the 2014 Royal Bank Cup, where they had gained entry into the tournament as the Western Canada Cup runner-up making them the first team in Centennial Cup/Royal Bank Cup history to win the national championship without being the host or a regional champion.