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Individual Calculations July 2012 |
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| Vigorito, David Total change: -7.50 | |   |
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| 81st Massachusetts Open | Marlboro, Massachusetts | USA | 2012-05-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2306 | 2429 | 2.50 | 5 | -0.75 | 10 | -7.50 | |
|  Carter, David E | | | 2090 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | |  Castaneda, Nelson | f | | 2244 | USA | 0.50 | 1 | -0.24 | 10 | -2.40 | | | Yedidia, Jonathan | m | | 2357 | USA | 0.50 | 1 | -0.10 | 10 | -1.00 | | | Perez, Robert | | | 2314 | USA | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Ivanov, Alexander | g | | 2526 | USA | 0.00 | 1 | -0.37 | 10 | -3.70 | |
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) | | |
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