You forgot "Blackbeard's Treasure Map" as a Red vs. Silver episode. One of two episodes where Red beats Silver. So it would be six times that combination occurred in Season 1, not five times.
Argh, for some reason I keep thinking that is a Red/Purple episode.

Stupid Sabrina, you just messed up my entire analysis along with your abomination of a run.
And now that I am thinking about it, didn't Silver/Orange occur a lot in season one? "Gordian Knot", "The Stolen Arm of Shiva", "Dead Man's Hand", "Cleopatra", and "John Henry's Lost Hammer"... that has the same number of matchups as Blue/Red. But that still doesn't work because Red/Silver had six matchups.
You forgot "Blackbeard's Treasure Map" as a Red vs. Silver episode. One of two episodes where Red beats Silver. So it would be six times that combination occurred in Season 1, not five times.
He obviously erased that atrocity from his memory. 
I will use this as my excuse.

Too bad I can't say the same thing about "Alhambra" though.
