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Individual Calculations September 2009 |
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| Cooke, Eric N Total change: 3.15 | |   |
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| 37th Annual World Open - Under 2400 Section | Philadelphia, Pennsylvania | USA | 2009-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2081 | 2204 | 4.50 | 8 | -0.76 | 15 | -11.40 | |
|  Owen, Steven A | | | 2084 | USA | 0.00 | 1 | -0.66 | 15 | -9.90 | |  Adelberg, David | | | 2158 | USA | 0.50 | 1 | -0.06 | 15 | -0.90 | | | Ng, Andrew | | | 2103 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Liu, Jennie S | | | 1854 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Rosenberg, Evan S | | | 2155 | USA | 0.00 | 1 | -0.57 | 15 | -8.55 | | | Chan, Julian M | | | 2080 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Stancil, Kimani A | | | 2116 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Murthy, Pappu | | | 2095 | USA | 0.00 | 1 | -0.65 | 15 | -9.75 | |
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) | | | | 2009 US Class Championships | Boca Raton, Florida | USA | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2199 | 2204 | 3.00 | 4 | 0.97 | 15 | 14.55 | |
| | Veksler, Boris | | | 2088 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Garcia, Gildardo J | g | | 2390 | COL | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Heung, Christopher | | | 2020 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Galofre, Charles A | f | | 2296 | 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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