There's only 1 playoff spot still up for grabs.
The Riders and Stamps are both in contention for 3rd in the West, and their head-to-head on Friday could be decisive. If the Riders win, they're headed to the playoffs. The Stamps would have to win that match and then make up 1 more win over the Riders in the last 2 weeks to make the playoffs.
But the Riders haven't won since Labour Day - a 5-game losing streak. Their defence has been weak, allowing 30+ points in each match. It should be a fun match between the two rivals!