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Individual Calculations September 2009 |
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| Raphael, Christopher Total change: -2.85 | |   |
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| Caribbean Chess Carnival 2009 - Under 20 | Port of Spain | TRI | 2009-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1978 | 1901 | 1.00 | 3 | -0.19 | 15 | -2.85 | |
|  Cabralis, Keron | | | 2043 | TRI | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Sanches, Romario | | | 1904 | SUR | 0.50 | 1 | 0.00 | 15 | 0.00 | | | Davy, Damion | | | 1988 | JAM | 0.00 | 1 | -0.38 | 15 | -5.70 | |
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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