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Individual Calculations March 2012 |
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| Williams, Justus D Total change: 28.35 | |   |
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| 30th Annual Empire City Open | New York, New York | USA | 2011-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2207 | 2186 | 3.00 | 5 | 0.59 | 15 | 8.85 | |
|  Krush, Irina | m | wg | 2476 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | |  Bierkens, Pieter A | | | 2175 | USA | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Ryba, Nicholas | | | 2102 | USA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Chen, Jasmine | | | 1967 | USA | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Ostrovskiy, Aleksandr | f | | 2313 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | 44th Annual Liberty Bell Open - Open Section | Philadelphia, Pennsylvania | USA | 2012-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2206 | 2169 | 4.00 | 6 | 1.30 | 15 | 19.50 | |
| | Chiang, Michael | | | 2173 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Kahn, Aaron E | | | 2212 | USA | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Arias Santana, Mauricio | m | | 2318 | CRC | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Bodek, Michael H | | | 2232 | USA | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Hua, David | | | 2151 | USA | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Wu, Christopher | | | 2148 | USA | 1.00 | 1 | 0.47 | 15 | 7.05 | |
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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