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Individual Calculations July 2013 |
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| Ivanov, Alexander Total change: 4.90 | |   |
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| 82nd Massachusetts Open | Marlboro, Massachusetts | USA | 2013-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2312 | 2529 | 4.00 | 5 | 0.18 | 10 | 1.80 | |
|  Chase, Christopher | f | | 2306 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | |  Perez, Robert M | | | 2359 | USA | 0.50 | 1 | -0.22 | 10 | -2.20 | | | Rizzitano, James A | m | | 2307 | USA | 1.00 | 1 | 0.22 | 10 | 2.20 | | | Vigorito, David | m | | 2429 | USA | 0.50 | 1 | -0.14 | 10 | -1.40 | | | Brattain, Mika Andrew | | | 2160 | USA | 1.00 | 1 | 0.10 | 10 | 1.00 | |
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) | | | | 2013 US Senior Open | Tarrytown, New York | USA | 2013-05-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2326 | 2529 | 2.50 | 3 | 0.31 | 10 | 3.10 | |
| | Sharp, Dale Eugene | | | 2129 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Bonin, Jay Richard | m | | 2332 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Kudrin, Sergey | g | | 2518 | USA | 0.50 | 1 | -0.02 | 10 | -0.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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