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Individual Calculations September 2012 |
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| Chiang, Sarah Total change: -32.40 | |   |
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| XXIII Festival Panamericano de Ajedrez de la Juventud Open Sub 16 | Lima | PER | 2012-07-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1904 | 2102 | 6.00 | 9 | -0.75 | 15 | -11.25 | |
|  Bocanegra Acosta, Erick | | | 1795 | PER | 1.00 | 1 | 0.14 | 15 | 2.10 | |  Bigoria Escobedo, Raul | | | 1898 | PER | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Florea, Alexandru | | | 1978 | CAN | 0.00 | 1 | -0.67 | 15 | -10.05 | | | Chiari, Arthur Gontijo | f | | 2010 | BRA | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Roman Sanchez, Wilder Xavier | | | 1832 | PER | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Vasquez Toledo, Cristian | | | 1877 | CHI | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Jerves Cordova, Carlos | | | 1899 | ECU | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Cisneros Avendano, Diego | | | 1909 | PER | 0.50 | 1 | -0.25 | 15 | -3.75 | | | Cruz Pereyra, Andresantoni | | | 1940 | PER | 1.00 | 1 | 0.29 | 15 | 4.35 | |
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) | | | | 2nd Metropolitan Chess FIDE International | Los Angeles, California | USA | 2012-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2196 | 2121 | 3.00 | 9 | -0.70 | 15 | -10.50 | |
| | Ippolito, Dean | m | | 2448 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Helfst, Matt D | | | 1991 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Remlinger, Larry A | m | | 2330 | USA | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Ishkhanov, Tigran | | | 2324 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Nilsson, Martin | | | 2165 | SWE | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Yanayt, Eugene | f | | 2266 | USA | 0.50 | 1 | 0.19 | 15 | 2.85 | | | He, Tommy O | f | | 1982 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Wheeler, Cameron | | | 2105 | USA | 0.00 | 1 | -0.52 | 15 | -7.80 | | | Amerkeshev, Madiyar | | | 2153 | KAZ | 0.00 | 1 | -0.46 | 15 | -6.90 | |
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) | | | | 2012 DCC FIDE Open VI | Richardson, Texas | USA | 2012-08-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1866 | 2121 | 2.50 | 4 | -0.71 | 15 | -10.65 | |
| | Frutos, Chase | | | 1721 * | USA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Sanchez, Robert | | | 1853 | USA | 0.50 | 1 | -0.33 | 15 | -4.95 | | | He, Tommy O | f | | 1982 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Vaidya, Atulya | | | 1907 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | | | * 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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