05/09/2014 12:15 AMPosted by

Plasma Most leagues are about 250-300 rating wide, and Diamond's a little wider.

Are these numbers connected to the points a player earns for winning? i.e. average game winning about 10-14 points means 18-30 games more won than lost up to next level?

Noooot exactly. I'll give you a rundown. If you have the same MMR as your opponent, that game is worth 16

rating for both players (+16 for win, -16 for loss). If you have the same MMR and the same amount of adjusted points (points excluding spent bonus pool), that game is worth 12

points for both players. So, even if everything is equal, there's a minor difference between what you'll earn in points versus rating. Now, beyond a certain your-points-to-opponent-rating difference, a game will be worth +13/-11

points for you, or +14/-10, or +15/-9. Those breakpoints for each step aren't linear. You can see what they are here: http://postimg.org/image/8bny2acav/

The point system is built on top of the rating system, which means Blizzard has more flexibility to do whatever they want with points. For example, each league (except Master and GM) has a certain

**MMR floor** for purposes of earning points. Just to use quick made-up numbers, if Bronze encompasses a range of 0-300 rating and you draw an opponent with 50 or less rating, their rating for the purposes of point calculation would be 50. MMR can still go below that floor. I believe we last estimated it to be between 73 and 88 for each sub-Master league. This means that if your MMR is below the floor and you're playing against other below-the-floor players, both of you will earn +14/-10 points, which prevents your points from stagnating at zero. Before the floor was added, there used to be a big problem in low Bronze where players could earn +1 point for a win, win 24 times in a row, then lose -24 for their first loss.

In terms of knowing how close you are to promotion, you can still kind of guess based on your adjusted points. Even though the scales are different between rating and points, the fact remains that points chase rating, so they're not completely worthless. If we determine that a league's rating range is 300, then you're going to be pretty hard-pressed to find a player on SC2Ranks/Nios who has more than 300 adjusted points in that league (because they would have been promoted already). You'll hit +300 rating slightly faster than 300 adjusted points, but you can keep in the back of your mind that the closer you get to 300 adjusted points, the closer you are to promotion.

Sort of a disclaimer on that last point: this all assumes you haven't experienced MMR decay. MMR decay kicks in at 2 weeks/14 days/336 consecutive hours without playing a game mode. It starts at 0 on Day 14 and ramps up by -22.5 rating per day (-0.9375 per hour) linearly up to a cap of -315 at Day 28. Naturally even if you had 180 adjusted points and +240 rating, you could no longer rely on that 180 as a guide if you idled for a month and decayed by -315, bringing you to 180 adjusted points but -75 rating.