Playing a ranked opponent twice makes for a stronger schedule than only playing the opponent once. It should be factored in. In other words, it should be the number of games versus ranked opponents, not just the number of ranked opponents on the schedule.
But if you are figuring the number of ranked opponents divided by the total number of opponents, then the percentage makes sense. It's the use of the term "games" that confused me.
I just think the total number of games vs ranked opponents is a better indicator of schedule strength than simply the number of ranked opponents.
