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Individual Calculations January 2013 |
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| Porter, Russel Total change: 5.55 | |   |
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| Jamaica Open 2012 | Negril | JAM | 2012-11-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 2122 | 3.00 | 4 | 0.37 | 15 | 5.55 | |
|  Brooks, Paul | | | 1891 | JAM | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Lorne, Malaku | | | 2102 | JAM | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Wisdom, Daren | | | 1948 | JAM | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Mellace, Andrew | | | 2067 | JAM | 0.50 | 1 | -0.08 | 15 | -1.20 | |
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) | | |
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