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Individual Calculations December 2015 |
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| Davy, Damion Total change: -3.00 | |   |
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| 47th Jamaica Open Championship | Kingston, Jamaica | JAM | 2015-10-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1891 | 2220 | 5.00 | 6 | -0.22 | 20 | -4.40 | |
|  Steadman, Tevanio | | | 1820 * | JAM | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Wilkinson, Ian | | | 1907 | JAM | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Diedrick, Michael | | | 1922 | JAM | 1.00 | 1 | 0.15 | 20 | 3.00 | | | Richards, Deborah | | wm | 1978 | JAM | 0.00 | 1 | -0.80 | 20 | -16.00 | | | Bogart, Mark J | | | 1900 | USA | 1.00 | 1 | 0.13 | 20 | 2.60 | | | Christie, Joshua | | | 1820 * | JAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | * 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) | | | | 3rd Srefidensi Chess Celebration 2015 -master group | Paramaribo | SUR | 2015-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2225 | 2220 | 4.50 | 9 | 0.07 | 20 | 1.40 | |
| | Hanoeman, Suradj | c | | 1988 | SUR | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Sukandar, Irine Kharisma | m | wg | 2406 | INA | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Farley, Terry | m | | 2233 | BAR | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Husbands, Orlando | f | | 2162 | BAR | 0.50 | 1 | -0.08 | 20 | -1.60 | | | Elliott, Warren | f | | 2271 | JAM | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Johnson, Joshua | f | | 2104 | TTO | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Pecorelli Garcia, Humberto | m | | 2400 | CUB | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Zozulia, Anna | m | wg | 2338 | BEL | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Tjong Tjin Joe, Calvin | f | | 2122 | SUR | 1.00 | 1 | 0.37 | 20 | 7.40 | |
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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