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Individual Calculations March 2011 |
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| Bonin, Jay R Total change: -13.50 | |   |
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| 29th Annual Empire City Open | New York, New York | USA | 2010-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2078 | 2322 | 1.50 | 4 | -1.70 | 10 | -17.00 | |
|  West, James R | | | 2110 | USA | 0.50 | 1 | -0.27 | 10 | -2.70 | |  Hua, David | | | 1989 | USA | 0.50 | 1 | -0.38 | 10 | -3.80 | | | Wang, Eigen | | | 2136 | USA | 0.50 | 1 | -0.24 | 10 | -2.40 | | | Finney, Stuart S | | | 2076 | USA | 0.00 | 1 | -0.81 | 10 | -8.10 | |
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) | | | | 43rd Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 2309 | 2.50 | 5 | -0.85 | 10 | -8.50 | |
| | Mucerino Jr, Joseph | | | 2076 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Kudrin, Sergey | g | | 2545 | USA | 0.00 | 1 | -0.20 | 10 | -2.00 | | | Colas, Joshua | | | 2049 | USA | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Cao, Kevin Y | | | 2073 | USA | 0.50 | 1 | -0.30 | 10 | -3.00 | | | Tuhrim, Richard J | | | 2123 | USA | 0.50 | 1 | -0.24 | 10 | -2.40 | |
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) | | | | 2011 Marshall January Grand Prix | New York, New York | USA | 2011-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2142 | 2309 | 3.50 | 4 | 0.64 | 10 | 6.40 | |
| | Richman, Jonathan | | | 2123 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Berg, George P | | | 2074 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Rosenberg, Evan S | | | 2203 | USA | 1.00 | 1 | 0.36 | 10 | 3.60 | | | Pressman, Leif A | | | 2167 | USA | 0.50 | 1 | -0.19 | 10 | -1.90 | |
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) | | | | 2011 New York February Open | New York, New York | USA | 2011-02-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2227 | 2309 | 3.00 | 4 | 0.56 | 10 | 5.60 | |
| | Ellenbogen, Michael | | | 2119 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | | | Mc Clain, Dylan | f | | 2330 | USA | 0.50 | 1 | 0.03 | 10 | 0.30 | | | Williams, Justus D | | | 2154 | USA | 0.50 | 1 | -0.21 | 10 | -2.10 | | | Korley, Kassa | f | | 2303 | USA | 1.00 | 1 | 0.49 | 10 | 4.90 | |
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) | | |
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