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Individual Calculations March 2010 |
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| Kelley, Dereque D Total change: 55.95 | |   |
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| Washington Class Championships Master Section | Redmond, Washington | USA | 2009-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2300 | 2157 | 0.50 | 1 | 0.19 | 15 | 2.85 | |
|  Roper, David | f | | 2300 | USA | 0.50 | 1 | 0.19 | 15 | 2.85 | |
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) | | | | 19th Annual North American Open | Las Vegas, Nevada | USA | 2009-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2301 | 2157 | 3.00 | 6 | 1.04 | 15 | 15.60 | |
|  Naroditsky, Daniel | f | | 2339 | USA | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Yang, Darwin | f | | 2317 | USA | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Tanaka, Christian | | | 2150 | USA | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Ravshan, Khamroev | | | 2198 | UZB | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Shabalov, Alexander | g | | 2557 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Belliard, Luis M | | | 2246 | DOM | 0.00 | 1 | -0.38 | 15 | -5.70 | | | * 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) | | | | Golden State Open | Concord, California | USA | 2010-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2161 | 2138 | 1.00 | 4 | -0.89 | 15 | -13.35 | |
| | Yang, Darwin | f | | 2349 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Aigner, Michael | | | 2212 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Harmon-Vellotti, Luke | | | 2032 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | | | Lucente, Mike | | | 2050 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | |
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) | | | | Washington State Premier | Seattle, Washington | USA | 2010-02-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2126 | 2138 | 8.00 | 9 | 3.39 | 15 | 50.85 | |
| | Watts, Peter O | | | 2002 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Bartron, Paul R | f | | 2194 | USA | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Xing, Kerry | | | 2185 | USA | 1.00 | 1 | 0.57 | 15 | 8.55 | | | Sang, Tian | | | 2201 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Wang, Michael | | | 1994 | USA | 1.00 | 1 | 0.31 | 15 | 4.65 | | | Warrier, Krishnan | | | 2002 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | McMillan, Charles | | | 2091 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Dean, Randy | | | 2239 | USA | 1.00 | 1 | 0.64 | 15 | 9.60 | | | Macgregor, Michael | | | 2230 | USA | 1.00 | 1 | 0.63 | 15 | 9.45 | |
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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