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Individual Calculations December 2017 |
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| Russell, Paul Total change: 29.20 | |   |
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| 2017 Norths John Purdy Memorial Open | Sydney | AUS | 2017-09-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1876 | 1893 | 6.00 | 9 | 1.46 | 20 | 29.20 | |
|  Sze-To, Jonas | | | 1493 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Taffard, Christopher John | | | 1695 | NZL | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Feldman, Vladimir | m | | 2095 | AUS | 1.00 | 1 | 0.76 | 20 | 15.20 | | | Mallari, Donato | f | | 1987 | AUS | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Murray, Bruce D | c | | 2019 | AUS | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Sigurdsson, Birkir Karl | | | 1901 | ISL | 0.50 | 1 | 0.01 | 20 | 0.20 | | | Ng, Clive | c | | 2032 | AUS | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Armstrong, Gary | | | 1574 | AUS | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Charles, Gareth | | | 2085 | AUS | 0.50 | 1 | 0.25 | 20 | 5.00 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
Rc - average rating of rated opponents, Ro - rating of a player in a tournament, Rp - rating performance of an unrated player, W - points won in a tournament against rated opponents, N - total number of games against rated opponents, Change - change used for calculation according to formula, K - development coefficient, Kchg - rating change of a player calculated as (K * change) | | |
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