The inaugural Manitoba Centennial Trophy is awarded as trophy for the National Championship Junior A winner.
Teams play a best-of-seven series, East vs West.
The Manitoba Centennial Trophy, unofficialy, simply became known as the Centennial Cup.
A "Central Region" team was added for tournament play. Teams play a tournament round-robin. Each team plays each other twice with the top two playing a one game final.
The "Central Region" was eliminated. Teams again play a best-of-seven game series, East vs West.
The "Central Region" was reinstated along with a "Host Team". Teams play a tournament round-robin. Each team plays each other once, with the top three entering the playoffs. The top team directly enters the final and the other two play a semi-final.
The "Pacific Region" (BC / Alta) was added to the tournament. The teams play a round-robin with the four top teams making the two semi-final games, 1 plays 4 and 2 plays 3. The semi-final winners play for the Championship.
The 1990 game was the first to be broadcast nationaly by TSN with Vic Rauter as play by play man and Howie Meeker as the color commentor.
The Royal Bank Cup, with a new sponsor, The Royal Bank Of Canada, replaces the Centennial Cup.
The Royal Bank Cup is renamed to the RBC Royal Bank Cup.
The RBC Royal Bank Cup is renamed to the RBC Cup.
The RBC Cup, unofficialy simply became known as the RBC.
The tournament is renamed the National Jr A Championship as, the Royal Bank Of Canada cancelled it's sponsorship of the tournament. The RBC Cup trophy however was still presented.
For the 50th Anniversary of the championship, the Centennial Cup, is reinstated, along with a new trophy. It's official name will be "Centennial Cup, presented by, Tim Hortons" with Tim Hortons becomeing the title sponsor. The format also changed to the all of the 9 member League Champions, plus a host team, playing a "two group round-robin" to be eligible for the "cross-over semifinals" and final. The 2020 & 2021 championships were cancelled due to the world wide covid-19 pandemic.
Hockey Canada has droped the "presented by Tim Hortons" moniker as Tim Hortons withdrew its sponsorship for the 2023 season in response to the Hockey Canada sexual assault scandal.
Tim Hortons re-instates its sponsorship for the 2024 season.
The 2025 tournament was awarded to the Okotoks Oilers of the Alberta Junior Hockey League. However, the Oilers subsequently defected from the AJHL to the British Columbia Hockey League which, is not eligible for HockeyCanada sanctioned events.