At the start of each PvP season, we perform a game wide adjustment to players’ matchmaking ratings to re-normalize their distribution. After this process, most players don’t notice much of a difference with their matchmaking rating, but players at the far ends of the distribution may notice a significant change.
Unfortunately, this process did not occur prior to the start of Season 3 in this region (all of the Americas and Oceanic realms). This re-normalization needs to happen as soon as possible to prevent players’ personal ratings from far exceeding their re-normalized matchmaking ratings, particularly at the high end of the ladder.
We will be performing this re-normalization this evening, and players may notice a change to their matchmaking rating when they log in tomorrow.