1. DonationRhymester
    and RedHotTed
    Red Hot Rebel Clan
    Joined
    06 Apr '01
    Moves
    206413
    05 Jun '01 17:10
    Lets say you have a rating of 1300 - what would your rating be after
    being beaten by someone with a rating of:

    a) 1100?

    b) 1300?

    c) 1500?

    Rhymester
  2. SubscriberChris
    Site Admin
    Wimbledon
    Joined
    21 Feb '01
    Moves
    25628
    05 Jun '01 18:18
    The Win Expectancy for someone 200 points lower than you is 0.25
    (or, on average, they will win 1 game from 4). Similarly, for someone
    200 points higher than you, the win expectancy is 0.75. The Win
    expectancy for someone on the same ranking is, of course, 0.5.

    Using the ELO formula, your new rating for each would be

    1100) Old Rating - 32 * (1 - 0.25) = 1276
    1300) Old Rating - 32 * (1 - 0.5) = 1284
    1500) Old Rating - 32 * (1 - 0.75) = 1292

    Details of how Win Expectancy is calculated can be found in the FAQ.

    Thanks,
    Chris



  3. DonationRhymester
    and RedHotTed
    Red Hot Rebel Clan
    Joined
    06 Apr '01
    Moves
    206413
    05 Jun '01 19:19
    The fog clears - thanks!
  4. Donationvaknso
    The Ambassador
    Charleston SC. USA
    Joined
    17 Jun '01
    Moves
    116975
    02 Sep '02 21:21
    Just to bring it to the top to answer a question on 9-2-02
  5. Donationvaknso
    The Ambassador
    Charleston SC. USA
    Joined
    17 Jun '01
    Moves
    116975
    02 Sep '02 21:37
    trying to bring this to to top.
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