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Individual Calculations March 2013 |
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| Cohn, Zachary H Total change: -21.90 | |   |
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| 2012 Marshall Amateur Championship - Jerry Simon Memorial | New York, New York USA | USA | 2012-12-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 2076 | 1.00 | 2 | -0.29 | 30 | -8.70 | |
|  Hernandez, Joel J | | | 2096 | USA | 0.00 | 1 | -0.47 | 30 | -14.10 | |  Hellner, Wesley | | | 1810 | USA | 1.00 | 1 | 0.18 | 30 | 5.40 | |
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) | | | | 2013 MCC January FIDE Monday | New York, New York | USA | 2013-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1908 | 2073 | 1.00 | 2 | -0.44 | 30 | -13.20 | |
| | Muwwakkil, Mulazim | | | 1893 | USA | 0.00 | 1 | -0.74 | 30 | -22.20 | | | Frumkin, Edward A | | | 1922 | USA | 1.00 | 1 | 0.30 | 30 | 9.00 | |
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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