Chess rating system

  • #2501

    I was thinking about it .

  • #2502
    How can you go down from 1200 to 1361 !! Thats going up lol
  • #2503
    Just lost 200 chess.com blitz rate nag points
  • #2504

    I started with 1800 rating

     

  • #2505

    I was wondering if anyone could help me with this question - what type of games are represented by things such as 30|0 or 15|5? Thank you in advance.

  • #2506
    halcrabb3 wrote:

    I was wondering if anyone could help me with this question - what type of games are represented by things such as 30|0 or 15|5? Thank you in advance.

     

    https://support.chess.com/customer/en/portal/articles/1444850-how-do-the-time-controls-work-in-the-live-chess-

  • #2507

    Thank you, Mr. Stahl

  • #2508

    Why is it that when I divide my blitz ranking (roughly 150,500th place) out of the total blitz players (roughly 2.2 million), I am in the 90th percentile, but on my stats page, it says I am only in the 69th percentile.

     

    Thanks you.

  • #2509
    [COMMENT DELETED]
  • #2510

    hello people

  • #2511
    chyesssssss wrote:

    Why is it that when I divide my blitz ranking (roughly 150,500th place) out of the total blitz players (roughly 2.2 million), I am in the 90th percentile, but on my stats page, it says I am only in the 69th percentile.

     

    Thanks you.

     

    Because the stat is percentile not percentage.

     

    https://en.wikipedia.org/wiki/Percentile

  • #2512

     Rank and percentile are two different ways of saying the same thing.

     

    150,000th place of 2.2 million is the same as 93 percentile.

  • #2513

    [not vey helpful, so removed -- MOD] all of you

  • #2514
    chyesssssss wrote:

     Rank and percentile are two different ways of saying the same thing.

     

    150,000th place of 2.2 million is the same as 93 percentile.

     

    A statistical percentile doesn't work like that. The ratings are broken up into bands and a range of ratings can fall into the same percentile band.

     

    https://www.chess.com/leaderboard/live

     

    The percentile rank is based on which rating band you fall into on that graph, essentially. The 1400 band easily looks like it could fall near the 70 percentile band, though I don't know how many bands are actually used for the calculation.

  • #2515
    [COMMENT DELETED]
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