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Individual Calculations January 2011 |
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| Bonin, Jay R Total change: -13.00 | |   |
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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 |
| 2111 | 2317 | 3.00 | 4 | 0.03 | 10 | 0.30 | |
|  Sigamoney, Cyril S | | | 1964 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | |  Ryba, Nicholas | | | 2096 | USA | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Arluck, William S | | | 2052 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Kopec, Danny | m | | 2331 | USA | 0.50 | 1 | 0.02 | 10 | 0.20 | |
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 |
| 2137 | 2317 | 4.50 | 9 | -2.07 | 10 | -20.70 | |
| | Berg, George P | | | 2095 | USA | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Panico Iii, Nick F | | | 2054 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Chernin, Oliver | | | 2138 | USA | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Pressman, Leif A | | | 2116 | USA | 0.00 | 1 | -0.76 | 10 | -7.60 | | | Pappaceno, Michael | | | 2088 | USA | 1.00 | 1 | 0.21 | 10 | 2.10 | | | Sena, Juan | | | 2159 | DOM | 1.00 | 1 | 0.29 | 10 | 2.90 | | | Salakhutdinov, Ildar | | | 2279 | RUS | 0.00 | 1 | -0.55 | 10 | -5.50 | | | Treger, Yefim | | | 2194 | USA | 0.50 | 1 | -0.17 | 10 | -1.70 | | | Polyakin, Vladimir | | | 2114 | USA | 0.00 | 1 | -0.76 | 10 | -7.60 | |
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 November Grand Prix | New York, New York | USA | 2010-11-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 2322 | 2.50 | 3 | 0.26 | 10 | 2.60 | |
| | Layevskiy, Michael | | | 2065 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Margiotta, Jason J | | | 1978 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Hoffmann, Asa | f | | 2296 | USA | 0.50 | 1 | -0.04 | 10 | -0.40 | |
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) | | | | 41st Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2227 | 2322 | 3.50 | 6 | -0.16 | 10 | -1.60 | |
| | Battey, Alexander | | | 2273 | USA | 0.50 | 1 | -0.07 | 10 | -0.70 | | | Tan, Mackinley E | | | 2028 | USA | 0.50 | 1 | -0.35 | 10 | -3.50 | | | Strenzwilk, Denis | | | 2005 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Prilleltensky, Matan | | | 2122 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Krush, Irina | m | wg | 2495 | USA | 0.50 | 1 | 0.23 | 10 | 2.30 | | | Lapshun, Yury | m | | 2436 | USA | 0.00 | 1 | -0.34 | 10 | -3.40 | |
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) | | | | Atlantic City International | Atlantic City, New Jersey | USA | 2010-12-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2344 | 2322 | 3.00 | 5 | 0.64 | 10 | 6.40 | |
| | Lenderman, Aleksandr | g | | 2537 | USA | 0.00 | 1 | -0.23 | 10 | -2.30 | | | Finney, Stuart S | | | 2076 | USA | 1.00 | 1 | 0.19 | 10 | 1.90 | | | Stripunsky, Alexander | g | | 2579 | USA | 0.00 | 1 | -0.18 | 10 | -1.80 | | | Prilleltensky, Matan | | | 2122 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Mandizha, Farai | f | | 2406 | ZIM | 1.00 | 1 | 0.62 | 10 | 6.20 | |
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) | | |
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