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Individual Calculations January 2011 |
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| Kopiecki, Edward P Total change: -52.50 | |   |
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| 2010 Queens Chess Club Championship | Jamaica, New York | USA | 2010-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1964 | 2097 | 0.00 | 1 | -0.68 | 15 | -10.20 | |
|  Sigamoney, Cyril S | | | 1964 | USA | 0.00 | 1 | -0.68 | 15 | -10.20 | |
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 Marshall Chess Club Championship | New York, New York | USA | 2010-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2073 | 2097 | 1.00 | 6 | -2.20 | 15 | -33.00 | |
|  Pappaceno, Michael | | | 2088 | USA | 0.00 | 1 | -0.51 | 15 | -7.65 | | | Black Jr, James A | | | 1963 | USA | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Margiotta, Jason J | | | 1988 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Treger, Yefim | | | 2194 | USA | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Naranja, Renato C | m | | 2258 | PHI | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Paciulli, Frank R | | | 1949 | USA | 0.00 | 1 | -0.70 | 15 | -10.50 | |
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 Marshall December Grand Prix | New York, New York | USA | 2010-12-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2044 | 2085 | 0.50 | 2 | -0.62 | 15 | -9.30 | |
| | West, James R | | | 2110 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | | | Margiotta, Jason J | | | 1978 | USA | 0.00 | 1 | -0.65 | 15 | -9.75 | |
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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