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Individual Calculations March 2010 |
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| Kudrin, Sergey Total change: -13.50 | |   |
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| Edward Lasker Memorial and 93rd Annual Marshall Chess Club Championship | New York, New York | USA | 2009-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2388 | 2577 | 4.50 | 8 | -1.32 | 10 | -13.20 | |
|  Ostrovskiy, Aleksandr | c | | 2177 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Ravichandran, Siddharth | | | 2422 | IND | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Fedorowicz, John P | g | | 2458 | USA | 0.50 | 1 | -0.16 | 10 | -1.60 | | | Krush, Irina | m | wg | 2451 | USA | 0.00 | 1 | -0.67 | 10 | -6.70 | | | Sarkar, Justin | m | | 2374 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Treger, Yefim | | | 2223 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Panchanathan, Magesh | g | | 2541 | IND | 0.00 | 1 | -0.55 | 10 | -5.50 | | | Rohde, Michael A | g | | 2458 | USA | 0.50 | 1 | -0.16 | 10 | -1.60 | | | * 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) | | | | 2010 Happy New Year Open | New york, New York | USA | 2010-01-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 2569 | 3.00 | 4 | -0.67 | 10 | -6.70 | |
| | Ostrovskiy, Aleksandr | c | | 2169 * | USA | 0.00 | 1 | -0.92 | 10 | -9.20 | | | Berg, George P | | | 2169 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Ray, Sarathi | | | 2169 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Margulis, Yevgeni | | | 2186 | USA | 1.00 | 1 | 0.09 | 10 | 0.90 | | | * 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) | | | | 42nd Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2010-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2388 | 2569 | 3.00 | 5 | -0.56 | 10 | -5.60 | |
| | West, James R | | | 2169 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Uesugi, Shinsaku | f | | 2313 | JPN | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Krush, Irina | m | wg | 2455 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | | | Shabalov, Alexander | g | | 2611 | USA | 0.00 | 1 | -0.44 | 10 | -4.40 | | | Molner, Mackenzie | | | 2393 | USA | 0.00 | 1 | -0.73 | 10 | -7.30 | | | * 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) | | | | Land of the Sky XXIII | Asheville, North Carolina | USA | 2010-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2345 | 2569 | 5.00 | 5 | 1.20 | 10 | 12.00 | |
| | Dana, Maurice | | | 2169 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Simpson, Ronald | f | | 2314 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Chumachenko, Andre | f | | 2325 | RUS | 1.00 | 1 | 0.20 | 10 | 2.00 | | | Gulamali, Kazim | f | | 2335 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Kaidanov, Gregory | g | | 2583 | USA | 1.00 | 1 | 0.52 | 10 | 5.20 | | | * 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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