We've made some big changes to Competitive Play in Season 2. The most noticeable change is the introduction of skill tiers, which we hope will better communicate players' relative skill levels. Competitive Play will put a greater emphasis on skill tiers over specific ratings, and as such, a player's tier will be more prominently displayed throughout the game. We've also switched the skill rating system to a 1-5000 scale to give players more detailed information about how each match affects their specific rating.