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Individual Calculations July 2011 |
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| Layevskiy, Michael Total change: -35.75 | |   |
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| 2011 Marshall Chess Club FIDE Mondays | New York, New York | USA | 2011-04-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2119 | 2042 | 1.00 | 4 | -0.62 | 25 | -15.50 | |
|  Ostrovskiy, Aleksandr | f | | 2295 | USA | 0.00 | 1 | -0.19 | 25 | -4.75 | | | Kopiecki, Edward P | | | 2023 | USA | 0.50 | 1 | -0.03 | 25 | -0.75 | | | Hellenschmidt, Andrew | | | 1996 | USA | 0.50 | 1 | -0.06 | 25 | -1.50 | |  Treger, Yefim | | | 2163 | USA | 0.00 | 1 | -0.34 | 25 | -8.50 | |
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) | | | | 2011Marshall CC Maypril Grand Prix | New York, New York | USA | 2011-04-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 2042 | 0.00 | 2 | -0.57 | 25 | -14.25 | |
| | Sena, Juan | | | 2144 | DOM | 0.00 | 1 | -0.36 | 25 | -9.00 | | | Salakhutdinov, Ildar | | | 2274 | RUS | 0.00 | 1 | -0.21 | 25 | -5.25 | |
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 May Grand Prix | New York, New York | USA | 2011-05-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2265 | 2044 | 0.00 | 2 | -0.45 | 25 | -11.25 | |
| | Bonin, Jay | m | | 2310 | USA | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Rosenberg, Evan S | | | 2219 | USA | 0.00 | 1 | -0.27 | 25 | -6.75 | |
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) | | | NOTE: K factor changed | | The New Yorker Open - U2400 Section | New York, New York | USA | 2011-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2094 | 2044 | 2.50 | 5 | 0.35 | 15 | 5.25 | |
| | Kats, Alena | | | 2092 | USA | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Hulse, Brian | f | | 2174 | USA | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Mateer, Amanda | | wf | 2114 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Barsky, Sam A | | | 2046 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Itkis, Hana | | wf | 2044 | USA | 1.00 | 1 | 0.50 | 15 | 7.50 | |
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) | | |
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