As part of our ongoing work on Warcraft III: Reforged, we’ve just made an update to our matchmaking system. There is now has a wider band between the lowest value and the highest tracked values. This allows for player skill to be more accurately represented, especially for very high skill players. With this change, a 5000 matchmaking rating (MMR) should now represent a player who is rated higher than 50% of all players.
Additionally, in the Free for All system, each player’s MMR will now be updated based on their placement in the game. Players in first and second will typically gain matchmaking rating while third and fourth will lose rating. However, the players in second and third will receive notably smaller MMR changes than first and fourth, and it is possible for second place to lose MMR or third place to gain MMR depending on the disparity of MMR between players in the game. This change should help increase matchmaking accuracy for Free for All games.
As this was a change to our internal systems, there will not be a patch for players to download. The update was automatic.