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Automated matchmaking

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Automated matchmaking (AMM) is a StarCraft II battle.net feature, similar to the one in Warcraft III.

Players play 5 qualifying matches and are then assigned a skill level, which determines the league and division they will be placed in.[1] Skill levels will be reevaluated over time.[2]

Players are placed into separate brackets for 1 vs 1 and team matches[3] and teams can participate in anonymous matchmaking.[4]

There is a ladder within each skill league.[5]

Players do not directly select which map they play on. Instead, they may vote against three "unpreferred maps" out of a list, and are less likely to play on said map, but are not guaranteed to do so.

Winning a match grants points which can eventually lead to a rating change. When two players are about to face off, each is given a "favored" rating, which determines how many points each will get for defeating the other.

The AMM helps control smurfing, along with players only being allowed one account per purchase of StarCraft II.[6]

Changing PercentagesEdit

As of April 2012, season 7, Blizzard experimented with "loosening" up the AMM, causing players to be pitted against others with slightly higher and slightly lower ratings.[7] The immediate result was a failure, as players at both the extreme upper and lower skill ranges were being matched with inappropriate opponents. Blizzard introduced changes to correct the situation. At the higher skill levels, the system now chooses more competitive matches over faster matchmaking.[8]

As of Heart of the Swarm, Blizzard changed the league percentages as follows: Bronze 8%, Silver 20%, Gold 32%, from the previous 20% each.[9]

ReferencesEdit

  1. Blizzard Entertainment staff, Greg Canessa. 2010-02-009. Battle.net Preview. Blizzard Entertainment. Accessed 2010-02-09.
  2. As stated before there will be a league system in place similar to the traditional ladder system with ranks everyone is used to. You will have to play a couple of games to evaluate your level and then you will be put in a league that fits you best. Each league will also have a lot of subdivisions. After a period of time your skill level will be reevaluated and you will either go to a higher league or a lower one. Kapeselus. 2010-01-25. Gold, Silver, Bronze Leagues. Battle.net StarCraft II General Discussion Forum. Accessed 2010-01-25.
  3. Zetaras Xal'Kurat. 2009-08-24. BlizzCon 2009: Battle.net 2.0 and the Galaxy Editor’s Hour. StarCraft 2 Blog. Accessed 2009-08-29.
  4. Chris Sigaty. 2009-12-04. Interview with Chris Sigaty. Blizzard Entertainment. Accessed 2009-12-23.
  5. Blizzard staff. 2009-11-19. Developer panel. StarCraft II. Blizzard Entertainment. Accessed 2009-12-08.
  6. Rob Pardo, Greg Tito. 2010-03-17. Battle.net StarCraft II Matchmaking Too Good? Escapist Magazine. Accessed 2010-03-18.
  7. Aldrexus. 2012-04-06. Upcoming Changes to Matchmaking. Blizzard Entertainment. Accessed 2012-04-05.
  8. Aldrexus. 2012-04-23. Additional Matchmaking Changes. Blizzard Entertainment. Accessed 2012-04-29.
  9. Spyrian. 2013-03-11. Heart of the Swarm League Percentages. Blizzard Entertainment. Accessed 2013-03-11.

External LinksEdit

Warcraft III Automatic Matchmaking. Battle.net Accessed 2009-11-07. (Explanation for AMM in Warcraft III)

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