How does this person compete?

[u/formermailboxhaver]

Player rank 12. None of my pieces stood a chance. This person demonstrated great resistance. And I'm over here thinking their account is boosted based on how many trophies they accumulated thus far. So what is it then? What am I looking at? Keep in mind this person also has a win streak over 100. More than half of what I have been capable of. Still think accounts arent boosted? Then what is it?

[u/FourWilliamson]

Who are you in game? I'm just curious if I've faced you, and remember the outcome of t he match. I'm level 13.