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Individual Calculations July 2013 |
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| Foygel, Igor Total change: -2.90 | |   |
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| 82nd Massachusetts Open | Marlboro, Massachusetts | USA | 2013-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2468 | 3.00 | 4 | -0.29 | 10 | -2.90 | |
|  Williams, Chris | | | 2129 | USA | 0.50 | 1 | -0.38 | 10 | -3.80 | |  Liu, Andrew | | | 2156 | USA | 0.50 | 1 | -0.36 | 10 | -3.60 | | | Theil, Carey | | | 2184 | USA | 1.00 | 1 | 0.16 | 10 | 1.60 | | | Rizzitano, James A | m | | 2307 | USA | 1.00 | 1 | 0.29 | 10 | 2.90 | |
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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