How are people getting on in vs ranked mode?

I was originally targeting Great Ball Rank 1 for the 50 hourglasses reward, but actually it's easier than I thought and I'll try for Ultra Ball Rank 1. I'm just using my Blaine deck, with a win rate of 51%, but I made it to Great Ball Rank 4 today.

I've noticed that if I'm struggling at a certain level, if I wait a day or two and try again, it feels much easier. Presumably the better players/decks are moving up to the better ranks and it's just the worse players like me who are left behind, making it easier to win games again.