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Individual Calculations July 2013 |
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| Riordan, Charles Total change: -11.10 | |   |
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| 82nd Massachusetts Open | Marlboro, Massachusetts | USA | 2013-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2179 | 2326 | 2.00 | 4 | -0.74 | 15 | -11.10 | |
|  Xu, Grant Y | | | 2122 | USA | 0.50 | 1 | -0.26 | 15 | -3.90 | |  Times, Lawyer | | | 2068 | USA | 0.50 | 1 | -0.32 | 15 | -4.80 | | | Perez, Robert M | | | 2359 | USA | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Wang, Andrew C | | | 2165 | USA | 0.50 | 1 | -0.21 | 15 | -3.15 | |
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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