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Individual Calculations April 2018 |
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| Robertson, Jim Total change: -24.40 | |   |
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| Perth Congress 2018 Over-1500, Under-1900 | Perth | SCO | 2018-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1486 | 1679 | 2.50 | 5 | -1.22 | 20 | -24.40 | |
|  Sibbald, Connor | | | 1384 | SCO | 0.50 | 1 | -0.35 | 20 | -7.00 | |  Chadha, Sambhav | | | 1479 | SCO | 0.00 | 1 | -0.76 | 20 | -15.20 | | | Burke, David | | | 1616 | SCO | 0.00 | 1 | -0.59 | 20 | -11.80 | | | Washington, Ian | | | 1447 | SCO | 1.00 | 1 | 0.21 | 20 | 4.20 | | | McKay, Jonathan | | | 1503 | SCO | 1.00 | 1 | 0.27 | 20 | 5.40 | |
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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