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Individual Calculations March 2010 |
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| Frumkin, Edward A Total change: -5.55 | |   |
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| 2009 Queens Chess Club Championship | Jamaica, New York | USA | 2009-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2106 | 2021 | 2.50 | 4 | 0.89 | 15 | 13.35 | |
|  Simonaitis, Arunas | | | 1995 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Arluck, William S | | | 2030 | USA | 1.00 | 1 | 0.51 | 15 | 7.65 | |  Ryba, Andrew | | | 2063 | USA | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Kopec, Danny | m | | 2334 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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) | | | | 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 |
| 2157 | 2017 | 0.50 | 6 | -1.57 | 15 | -23.55 | |
| | Sarkar, Justin | m | | 2374 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Hess, Robert L | g | | 2417 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Sobo, Henry C | | | 2023 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Farber, Nelson M | | | 1979 | USA | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Margiotta, Jason J | | | 1992 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | | | West, James R | | | 2159 | USA | 0.00 | 1 | -0.31 | 15 | -4.65 | | | * 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 |
| 2133 | 2017 | 1.00 | 2 | 0.31 | 15 | 4.65 | |
| | Szuper, Paul | | | 2192 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Barsky, Sam | | | 2073 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | |
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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