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Individual Calculations October 2020 |
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| Ellis, David Total change: -37.20 | |   |
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| 2020 WA Closed Championship | Perth | AUS | 2020-07-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2030 | 1910 | 1.50 | 7 | -1.03 | 20 | -20.60 | |
|  Hare, Tim | | | 2074 | NZL | 0.00 | 1 | -0.28 | 20 | -5.60 | |  Kinsman, Craig C | | | 1889 | AUS | 0.00 | 1 | -0.53 | 20 | -10.60 | | | Hardegen, Kathryn | | wf | 1908 | AUS | 0.00 | 1 | -0.50 | 20 | -10.00 | | | O`mahoney, Keegan | | | 1903 | IRL | 1.00 | 1 | 0.49 | 20 | 9.80 | | | Ferozkohi, Ihsan | | | 2232 | GER | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Gong, Patrick | f | | 2291 | AUS | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Andador, Dominador | | | 1914 | AUS | 0.50 | 1 | 0.01 | 20 | 0.20 | |
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) | | | | 2020 David Ellis Cup | Perth | AUS | 2020-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1853 | 1910 | 2.00 | 5 | -0.83 | 20 | -16.60 | |
| | Gunawan, Tjermin | | | 1510 * | AUS | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Kurniawan, Stephanus | f | | 2281 | AUS | 0.00 | 1 | -0.10 | 20 | -2.00 | | | Ferozkohi, Ihsan | | | 2232 | GER | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Gao, Oscar | | | 1570 | AUS | 0.50 | 1 | -0.38 | 20 | -7.60 | | | De Vas, Saminda | | | 1674 | SRI | 0.50 | 1 | -0.30 | 20 | -6.00 | | | * 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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