Heroes of the Storm - New Party Size Rule for Quick Match

As part of our ongoing improvements for the Heroes of the Storm matchmaking system, we’ve just implemented a new change that will affect what types of parties you may get matched against while playing Quick Match. Starting today, we’ve greatly reduced the possibility that you’ll be matched against a party that has three more members than the largest party on your own team.
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Let’s expand on what that means. Take a look at a few common party sizes below, and what you can expect to see in Quick Match after today:

• Solo players: Cannot be matched against four or five-player parties.
• Duo players*: Cannot be matched against five-player parties.
• Three-player parties: Can match against any party size.

It is important to note that the matchmaker will still prioritize match quality over party size, and may pull in parties outside of these ranges if the resulting game is the most suitable match available. This means that it’s still possible to play against a party that’s larger than your own, but this will only occur in rare cases.

*EDIT: There has been some confusion about how parties of 3 can match against full parties. This rule is based on the largest party size on each team, so it IS still possible that 2 and 3-player parties (or 4+1 solo) will be matched together against a full party. However, as mentioned above, the matchmaker still prioritizes match quality, so the system will do its best to ensure your game is the best match available at the time the game is created. You should see cases like 2+1+1+1 and 5 solos against full parties much less often.
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We’re still hard at work exploring and testing further improvements for the matchmaking system internally, and your feedback helps us make sure our changes are headed in the right direction. Keep playing games, and keep sending your constructive thoughts about matchmaking our way. We’ll have more information to share about upcoming matchmaking changes in the future.
Thank you! 

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