1920 in Canadian football 1920 in Canadian football CIRFU and IRFU adopted a four-yard Interference rule while the CRU opted for three yards of Interference. ARFU played games with 12 players per side and introduced the snap-back. The reduction in the number of players was done for monetary reasons as train rates were high after World War I. The CRU would make the same changes in 1921. The MRFU champion Winnipeg Victorias were unable to field a full team for the WCRFU finals and withdrew from competition. The MRFU wanted to substitute the second place University of Manitoba Varsity team but the SRFU refused
Comparison of American and Canadian football 18 games since 1986, while the NFL regular season has consisted of 16 games since 1978. There are several radical differences concerning how the leagues calculate regular season records and how ties in the standings are broken: Although the rules of Canadian and American football have similarities, the differences have a great effect on how teams play and are managed. Generally, the "big play" is more important in the Canadian game, and offensive series are more difficult to manage. The red zone is an unofficial designating the portion of the field between the 20-yard line and the goal line. Due