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Individual Calculations May 2010 |
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| Wu, Christopher Total change: -14.45 | |   |
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| 40th Annual World Amateur Team & US Tean East | Parsippany, New Jersey | USA | 2010-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2008 | 2180 | 1.00 | 2 | -0.44 | 25 | -11.00 | |
|  Miller, Jake S | | | 1920 | USA | 0.00 | 1 | -0.82 | 25 | -20.50 | | | Cohen, Harry S | | | 2096 | USA | 1.00 | 1 | 0.38 | 25 | 9.50 | |
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) | | | | First Only New Jersey State Championship | Branchburg, New Jersey | USA | 2010-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2220 | 2143 | 2.00 | 4 | 0.39 | 25 | 9.75 | |
| | Stoyko, Stephen E | f | | 2244 | USA | 1.00 | 1 | 0.64 | 25 | 16.00 | |  Zlotnikov, Mikhail | m | | 2308 | USA | 0.50 | 1 | 0.22 | 25 | 5.50 | | | Matlin, Anna R | | | 1861 | USA | 0.50 | 1 | -0.34 | 25 | -8.50 | | | Ippolito, Dean J | m | | 2466 | USA | 0.00 | 1 | -0.13 | 25 | -3.25 | |
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) | | | | New York March Open | New York, New York | USA | 2010-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 2143 | 2.00 | 2 | 0.66 | 25 | 16.50 | |
| | Green, Per | | | 1961 | SWE | 1.00 | 1 | 0.26 | 25 | 6.50 | | | Barsky, Sam | | | 2067 | USA | 1.00 | 1 | 0.40 | 25 | 10.00 | |
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) | | | NOTE: K factor changed | | Philadelphia Open | Philadelphia, Pennsylvania | USA | 2010-03-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2105 | 2143 | 2.00 | 7 | -1.98 | 15 | -29.70 | |
| | Shabalov, Alexander | g | | 2543 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Tom, George | | | 2031 | USA | 0.00 | 1 | -0.65 | 15 | -9.75 | | | Margiotta, Jason J | | | 2011 | USA | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Lucente, Mike | | | 2059 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Heung, Christopher | | | 2070 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | | | Chiang, Michael | | | 1944 | USA | 0.00 | 1 | -0.76 | 15 | -11.40 | | | Bhatia, Kanwal K | | | 2076 | ENG | 0.00 | 1 | -0.59 | 15 | -8.85 | | | * 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) | | |
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