I am having a great amount of difficulty getting more than a few hearts during the visual part of the master rank cool contest. Which accessories should I put on my Nidoking? (His coolness is maxed out, by the way)

Hello, on Pokemon Battle Revolution the website says that they match up opponents based on skill. How does the game determine “Skill”? Is it by win loss record? Does how quickly and how many Pokemon you have remaining get taken into account? Do disconnected battles get taken into account? What are the exact odds of being pared up with “X” person?