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Heroes of the Storm MMR Changes on PTR

Blizzard announces an update to the Heroes of the Storm PTR to test a bunch of the upcoming changes for their MOBA that they announced at BlizzCon. This includes their new performance based matchmaking system, and they offer a new update explaining more of how this works and why they are making the change. Here's a bit:

Once we introduce performance-based matchmaking in the near future, our system will look at how well the individuals in a match are performing and use this to aid in calculating their MMR adjustments for the match. The system will apply context to these stats by looking at the Hero you’re playing, the Battleground you’re on, the game mode, and what region you’re playing in so it can make fair comparisons against other similarly skilled players under the same conditions. Our goal with this system is not to define a specific playstyle for each hero, since we are never manually setting which stats are considered important, but rather to let our machine-learning driven system define importance and weighting for stats based on millions of games of data. By looking at these stats across the entire player base, the system can see which stats are most important for effective play and create a data-driven model of what the most highly-skilled players are doing in any given situation.

What differentiates a highly skilled player on a given Hero isn’t always obvious, though. For example:

  • When looking at a Hero like Illidan, it’s pretty straight forward. A good Illidan does a fair amount of damage, soaks a lot of experience, doesn’t die very often, and captures a lot of Mercenary camps. Illidan has a fairly high skill ceiling, though, so we expect there to be a sizeable difference in all of those stats between a highly-skilled Illidan and an average one.
  • However, for a hero like Kerrigan, the difference in raw stats like damage and experience between a high skill and average skill player isn’t quite as dramatic. Instead, the biggest thing that sets apart a highly skilled Kerrigan is how effective they are in landing crowd control effects, so the system would put a larger emphasis on this stat for Kerrigan players. She’s still being evaluated on all the same stats as every other hero, though, so a Kerrigan who spends the game only attempting to land stuns would not necessarily gain the same amount of MMR, as they would need to also contribute to the game in a meaningful way on top of landing lots of CC.

The system can then use an individual player’s performance to adjust how much MMR the player gains, or loses, for a game. If they’re performing beyond expectations for their current MMR, the system will grant more MMR when they win, subtract less when they lose, and they’ll more quickly arrive at the proper MMR for their skill. The opposite is also true if they’re not performing up to expectations.

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1. Re: Heroes of the Storm MMR Changes on PTR Nov 21, 2017, 07:37 Bub
 
And here comes top down meta, faster than player consensus meta.
Fire up the cookie cutter forge!
 
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Bubb Stubbley
... I miss BBS..
"There is a sucker born every minute." - PT Barnum
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>> 1. Nov 21, 07:37 Re: Heroes of the Storm MMR Changes on PTR Bub


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