Its that time of the year again–Americans are getting ready for football. In a few months NFL teams will be opening training camp and college football teams starting practice. Up north, however, the footballs are already flying as pro football is in full swing up in Canada with the Canadian Football League (CFL).

The CFL is almost as old as the NFL, coming into existence in’30. The league’s Grey Cup championship trophy is even older, having been awarded to the best Canadian professional football team since’09. There have been a number of NFL stars who got their start in the CFL including Doug Flutie, Randall Cunningham and Jeff Garcia.

The CFL is a very professional and highly competitive league, but its important to understand some important differences between it and the NFL:

The most obvious difference is the football itself–the CFL football is longer and fatter than the NFL ball. The CFL still has their goal posts on the goal line, which the NFL moved to the back of the end zone years ago. The field is 10 yards longer and 12 yards wider than the NFL field, and the CFL end zones are 20 yards deep instead of the NFL’s 10 yards.

Teams have 12 players on the field at once as opposed to 11 in the NFL. On offense, the extra player is a receiver, on defense a defensive back. And unlike the American game, where teams have 4 downs to move the ball ten yards the CFL has only 3. Maybe the hardest thing to get used to when listening to CFL broadcasts is the frequently references to teams going two and out. There are a few other subtle differences as well”teams only have 1 time out per half, only 20 seconds between plays, and all backfield players can be in motion prior to the snap (as opposed to only one in the NFL).

There’s also a significant difference in the way the game is scored. The first time many US fans see a CFL score update reflecting a 1-0 game they’re usually left scratching their head in confusion. CFL teams are able to score a single point, known as a “single” for a kick that lands in the end zone such as a punt or missed field goal.

The rule differences don’t end there–CFL teams are required to maintain a certain percentage of Canadian born players on their roster. The idea is that this will protect the unique identity of the game, as well as prevent it from becoming little more than a farm system for the NFL. Currently’ of the 40 players on a CFL roster must be Canadian natives.

Despite the rule differences that suggest a higher scoring, more wide open style of play than in the NFL it really doesn’t work out that way. Most games end up with a final score in the 40’s and have a similar pace to their NFL counterparts. There may be a few individual rule differences, but a strong rushing game and defense are tickets to success in the CFL as in the NFL.

The requirement of native born players making up 50% of a CFL roster also results in a much more even distribution of talent across the league. Certainly there are good teams and bad teams, but the end result is greater parity than is found in the NFL.

The CFL isn’t in a financial position to draw the top level US players away from the NFL or, in most cases, even a NFL practice or developmental squad. While some US players are uniquely suited to the CFL style of play, most of the US players that end up there are of a similar talent level as to that seen in Arena Football.

Despite the differences between the CFL and American football, at the end of the day its still high level, professional football. Once you understand the unique aspects of the CFL, it’ll become second nature much as NFL viewers quickly assimilate rule changes there.

Before the Internet became ubiquitous, it wasn’t easy for an American fan to keep up with the CFL. While they still don’t receive coverage on ESPN, the Internet affords access to the sports media of every CFL city along with the national Canadian sports media at sites like Slam! Sports. The CFL’s official site is also a great source of news, stats and information on Canadian football.

Ross Everett is a freelance sports writer and respected authority on sports betting odds comparison. He writing has appeared on a variety of sports sites including sports news and sportsbook directory sites. He lives in Las Vegas with three Jack Russell Terriers and a kangaroo. He is currently working on an autobiography of former energy secretary Donald Hodell.