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Individual Calculations September 2012 |
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| Kaufman, Lawrence Total change: -21.90 | |   |
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| 2012 Washington International | Rockville, Maryland | USA | 2012-07-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2090 | 2382 | 0.50 | 3 | -2.01 | 10 | -20.10 | |
|  Colas, Joshua | | | 2126 | USA | 0.00 | 1 | -0.81 | 10 | -8.10 | |  Ryba, Andrew | | | 2162 | USA | 0.50 | 1 | -0.28 | 10 | -2.80 | | | Liang, Awonder | f | | 1982 * | USA | 0.00 | 1 | -0.92 | 10 | -9.20 | | | * 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) | | | | 2012 Potomac Open | Rockville, Maryland | USA | 2012-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 2382 | 3.00 | 4 | -0.50 | 10 | -5.00 | |
| | Hoopengardner, Thomas | | | 1982 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Attanagoda, Isuru | | | 1982 * | USA | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Sevilla, Chris | | | 1990 | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Samuelson, Andrew | | | 2198 | USA | 0.50 | 1 | -0.24 | 10 | -2.40 | | | * 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) | | | | 44th Annual Atlantic Open | Washington DC | USA | 2012-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2142 | 2382 | 3.50 | 4 | 0.32 | 10 | 3.20 | |
| | Lucente, Mike | | | 2053 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Clancy, Daniel J | | | 2127 | USA | 0.50 | 1 | -0.31 | 10 | -3.10 | | | Malkiel, Daniel E | | | 2183 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Selzler, Richard T | | | 2204 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | |
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) | | |
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