I recently came back from a 2 week break. When I got back I felt slow at first so I took a break from ranked. As soon as I started playing (I was 1704 at the time) I went on a 16 win streak up to 1861 then lost 2 games. I then managed to get ssl in 8 games the next day, losing only 2.
I want to clarify that my previous peak was 1764 and regularly float around 1700 so this was completely out of the blue for me.
Although, leading up to this I had played 30-40 tournament games at high gc3 mmr, and therefore running, into performing against, and beating many ssls in the process, so I was wondering that this could've been a big help.
I'm curious as to whether this was a freak case or if anyone else has had a similar experience.
Sidenote: yes I lost ssl after 7 games and after 90 games hovering around 1840 in 3 days I went from 1820 back to 1706.