 Previously, the regional Eastern and Western champions that played in the Grey Cup were determined by playoffs between the winners of each region's leagues.These regional playoffs were sufficiently popular (and the teams were so dependent on gate receipts in the then-short season available to play football in Canada) that the regional conferences implemented a format that ensured playoffs were contested every season as opposed to only those where ties needed to be broken.The current tiebreaking criteria are substantially different in the CFL compared to the NFL, although like the NFL it culminates in a coin toss in the highly unlikely event all specified performance-based criteria cannot break a tie at the end of the regular season.