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Individual Calculations March 2011 |
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| Tom, George Total change: -9.90 | |   |
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| 29th Annual Empire City Open | New York, New York | USA | 2010-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 2030 | 0.00 | 3 | -1.50 | 15 | -22.50 | |
|  Chernin, Oliver | | | 2138 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | |  Black Jr, James A | | | 2023 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Matlin, Anna R | | | 1925 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | |
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) | | | | 43rd Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2204 | 2017 | 2.50 | 6 | 0.84 | 15 | 12.60 | |
| | Thaler, Michael | | | 2257 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Tuhrim, Richard J | | | 2123 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Ding, Jialin | | | 2093 | USA | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Sarkar, Justin | m | | 2417 * | USA | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Cherniack, Alex | | | 2251 | USA | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Itkis, Hana | | wf | 2084 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | * 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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