Any coach will tell you that a game in July is just as important as a game in October. But to fans, Labour Day in the CFL is the unofficial start of the road to the Grey Cup. Division rivals meet square on, often in back-to-back weeks, intensity is high and the race is on to clinch one of the six playoff spots for a chance to play in November.

Eighteen games make a long season, so obviously winning the division, for various reasons, is the teams’ number one goal. It earns them a bye week allowing them to rest and also decreases the number of games between them and the Grey Cup. A second place finish also secures a team a playoff game in its own backyard and a third place finish gives you a shot of winning three road games to take home the championship.

But there is another way a team can qualify for the Grey Cup Playoffs. Although it has yet to yield a Grey Cup winner, several teams have used the method to qualify: It’s the crossover rule. And here’s how it works:

If the fourth-place team in division A has more points, not tied, than the third-place team in division B, the fourth-place team will cross over to division B, replace the third place team in division B, and compete against the second-place team of that division.

Let’s look at the 2014 season for an example.

The BC Lions finished the season 9-9, fourth place in the West Division. In the East Division, the Toronto Argonauts finished in third with an 8-10 record. Since the Lions had a better record than the third place in the opposite division, they crossed over and played the Montreal Alouettes in the East Semi-Final. They lost 50-17.

The rule was first introduced in 1996 (slightly different format). The version of the crossover playoff format in use today was first used in 1997. It was implemented more than a decade ago for two primary reasons. One reason was that it intended to keep the entire league competitive down the stretch, which keeps the fan interest level as high as possible and teams’ playoff hopes alive. The second reason is to reward the top six teams with a playoff berth.

While this format keeps the entire league competitive and rewards the top six teams with a playoff berth, it is also sensitive to the East-West rivalry. Qualifying the top six teams, in a ranking format could be another option, but division play is an important role in building rivalries, especially come playoff time.

The current crossover formula could allow for a same division Grey Cup game, however it also ensures each division has two home playoff games, despite the crossover teams’ record.

For example, if a team in one division has a 9-9 record and finishes in fourth, it may have a better record than the third place team in the opposite division and the second place team. However, even if it has a better record than the second place team, it still has to play on the road.

And if you look back at the short history of the crossover it illustrates the difficulty of a team crossing over to the opposite division and competing in the semi-final.

And for the fans? They receive increased unscripted playoff drama, which is what sports are all about, isn’t it?

To keep track of the crossover playoff race, visit the Crossover standings following each game by clicking here or accessing it through the schedule menu option.