SR, MMR, and Role Queue

[Kaawumba-1133]

@ElobaCarcen-2521

I know you usually compile info like this in an attempt to combat criticism towards the system.

This is a common misconception. My goal is primary to give information about how the system works. If I have no problem with criticism if it is criticizing the system as it is actually implemented. I criticize the system as well. I get frustrated when people hallucinate how the system works and criticize that hallucination.

@ElobaCarcen-2521

In WoW they used a 4 digit number, same as SR. That MMR served the purpose of giving you an estimation of where you belong, and they used it for finding enemies only (because there you created teams, so you always played as a full premade).

Here you have a 1 digit number between -3 and +3, it’s not given to you to see, and it’s also used for finding allies (essentially making it into a self fulfilling prophecy). And, especially if it can shift quickly from +3 to -3 after a single match, no wonder why they don’t display it and no wonder why the system is so volatile.

MMR is not an integer, and will move a small amount (approximately 0.03 for established players) with each game.

Regarding streaks: Win probability changes slowly with rank because there are so many random factors in each individual match. Unfortunately, it follows from this that frequent and long streaks will occur, and a player’s rank will oscillate widely. Essentially, a player will tend to bounce between the range of where he is nearly guaranteed to win and where he is nearly guaranteed to lose. Historically, the range varied from player to player, but +/- 250 SR was common and +/- 500 was possible. This problem can be analyzed in depth, mathematically (Overwatch Forums). With role queue, and several months of data, streaks should be reduced in frequency and duration, and total SR swing should be less. How much less will have to be seen.

@ElobaCarcen-2521

I’m telling you, there’s something very fishy with this system. It simply does not behave like what one would expect based on his experience with other games where Elo, True Skill or whatever variation we have here.

It behaves exactly like expected from TrueSkill: Why Match Quality is Frequently Poor.

@Razihell-11734

Exactly what is happening in Heroes of the storm

You win SR raise then you got match with potatoes (MMR dosent move as fast as SR)

I did quit HOTS for this reason and im quitting OW for this even if 222 was a really good move BYE

SR is not used in matchmaking. Only MMR is. There is no “you’re doing well, time to carry a sack of potatoes” in Overwatch. I don’t comment on HoTS because I’ve barely played it.