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Individual Calculations January 2011 |
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| Sarkar, Justin Total change: 4.80 | |   |
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| 2010 Marshall Chess Club Championship | New York, New York | USA | 2010-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2269 | 2389 | 5.50 | 9 | -0.26 | 10 | -2.60 | |
|  Naranja, Renato C | m | | 2258 | PHI | 0.50 | 1 | -0.18 | 10 | -1.80 | |  Black Jr, James A | | | 1989 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Pressman, Leif A | | | 2116 | USA | 0.50 | 1 | -0.33 | 10 | -3.30 | | | Esserman, Marc R | m | | 2400 | USA | 0.50 | 1 | 0.02 | 10 | 0.20 | | | Aaron, Deepak | | | 2177 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Salakhutdinov, Ildar | | | 2279 | RUS | 1.00 | 1 | 0.35 | 10 | 3.50 | | | Paragua, Mark C | g | | 2496 | PHI | 0.00 | 1 | -0.35 | 10 | -3.50 | | | Kudrin, Sergey | g | | 2546 | USA | 0.00 | 1 | -0.29 | 10 | -2.90 | | | Sena, Juan | | | 2159 | DOM | 1.00 | 1 | 0.21 | 10 | 2.10 | | | * 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) | | | | 17th Annual Eastern Chess Congress | Stamford, Connecticut | USA | 2010-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2264 | 2413 | 2.00 | 2 | 0.66 | 10 | 6.60 | |
| | Rozovsky, Daniel | f | | 2101 | USA | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Vioreanu, Bogdan G | m | | 2426 | ROU | 1.00 | 1 | 0.52 | 10 | 5.20 | |
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) | | | | 41st Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2292 | 2413 | 3.00 | 5 | -0.28 | 10 | -2.80 | |
| | Krause, Benjamin | | | 2228 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Mabe, Chris J | | | 2191 | USA | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Battey, Alexander | | | 2273 | USA | 1.00 | 1 | 0.31 | 10 | 3.10 | | | Shabalov, Alexander | g | | 2591 | USA | 0.00 | 1 | -0.27 | 10 | -2.70 | | | Shvartsman, Andrew N | c | | 2177 | USA | 0.50 | 1 | -0.30 | 10 | -3.00 | |
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 |
| 2144 | 2413 | 2.00 | 2 | 0.36 | 10 | 3.60 | |
| | Markzon, Gregory | f | | 2211 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Finney, Stuart S | | | 2076 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | |
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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