CFL.ca argues that three statistical factors should be weighed in predicting the game. Their argument is: both games between these teams were decided by one point and both teams have been mostly winning in the last part of the season; ball security tilts towards Ottawa as it is +26 in total turnovers compared to the Riders; and Trevor Harris is starting his first playoff game, raising questions about whether that will affect his play. I agree that the two regular season games show little difference between the two teams and ball security is usually a deciding factor. However, Trevor Harris has repeatedly shown himself to be cool under pressure and a better QB than Glenn, so the fact that this is his first playoff start is not very likely to be a significant factor. Thus, given the advantage Ottawa has in turnovers and its home field advantage with Harris at QB, I give the edge to Ottawa. Where the Riders have an edge is Bridge is much better than Tate.

https://www.cfl.ca/2017/11/05/number...rn-semi-final/