Does matchmaking shift at certain point thresholds?

I admit I haven’t been paying a super amount of attention to it, but it feels like my matchmaking shifts suddenly when I reach 600 points or so. Like up until that point, I’m only seeing weaker teams for 20 or so points at a time, with almost nobody over level 85. Suddenly as soon as I pass 600, I see much stronger teams and I get plundered by 4 or 5 of them. It feels like my matchmaking is restricted to a limited pool of opponents until I reach a certain level at which point I can see and be seen by pretty much everyone.

Anyone else notice this?

I’ve noticed that this seems to happen at certain thresholds as well. Not sure what the thresholds actually could be or if the game is just slow at catching up to a winning streak but it seems to be happening.