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Individual Calculations January 2012 |
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| Colas, Joshua Total change: 5.10 | |   |
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| 2011 Marshall Chess Club Championship | New York, New York | USA | 2011-10-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2041 | 2025 | 3.00 | 5 | 0.62 | 15 | 9.30 | |
|  Frumkin, Edward A | | | 1994 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | |  Resika, Nathan | f | | 2130 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Rozman, Levy | | | 2089 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Kopiecki, Edward P | | | 2015 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Layevskiy, Michael | | | 1979 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | |
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) | | | | 2011 Marshall November Grand Prix | New York, New York | USA | 2011-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 2047 | 2.00 | 3 | 0.79 | 15 | 11.85 | |
| | Richman, Jonathan | | | 2014 | USA | 1.00 | 1 | 0.45 | 15 | 6.75 | | | Fabbri, Alexander | | | 2063 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Bonin, Jay | m | | 2314 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | |
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) | | | | World Youth Chess Championship - U 14 Open | Caldas Novas/GO | BRA | 2011-11-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1996 | 2047 | 4.00 | 9 | -1.07 | 15 | -16.05 | |
| | Saavalainen, Ellis | | | 1647 * | FIN | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Ghosh, Diptayan | f | | 2342 | IND | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Cisneros Avendano, Diego | | | 1826 | PER | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Svane, Rasmus | | | 2363 | GER | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Abe, Mahiro | | | 1867 | JPN | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Silva, Gustavo Queiroz Dos Santo | | | 1920 | BRA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Bodek, Michael H | | | 2236 | USA | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Krsnik Cohar, Ivan Vihor | | | 1937 | CRO | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Plotkin, Mark | | | 1826 | CAN | 0.00 | 1 | -0.78 | 15 | -11.70 | | | * 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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