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Individual Calculations September 2009 |
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| Heung, Christopher Total change: 28.95 | |   |
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| 3rd Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2009-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2190 | 1985 | 2.50 | 7 | 0.75 | 15 | 11.25 | |
|  Boor, Carl B | f | | 2291 | USA | 1.00 | 1 | 0.86 | 15 | 12.90 | |  Garcia, Gildardo J | g | | 2335 | COL | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Studen, Damir | | | 2208 | USA | 0.50 | 1 | 0.28 | 15 | 4.20 | | | Fayvinov, Zakhar | f | | 2171 | USA | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Dougherty, Michael | f | | 2203 | CAN | 0.00 | 1 | -0.22 | 15 | -3.30 | | | Naroditsky, Alan J | | | 2120 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Odeh, Kenneth | | | 1999 | NGR | 0.50 | 1 | 0.02 | 15 | 0.30 | |
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 |
| 2202 | 2020 | 2.00 | 5 | 0.68 | 15 | 10.20 | |
| | Palao, Maricela | | wm | 2176 | COL | 1.00 | 1 | 0.71 | 15 | 10.65 | | | La Rota, Fabio | f | | 2257 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Cooke, Eric N | | | 2204 | USA | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Alvarez, Ernesto | | | 2231 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Goss, Mel H | | | 2141 | USA | 1.00 | 1 | 0.66 | 15 | 9.90 | |
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 Southern Open | Kissimmee, Florida | USA | 2009-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2307 | 2020 | 1.00 | 3 | 0.50 | 15 | 7.50 | |
| | La, Rota Fabio | f | | 2257 | USA | 1.00 | 1 | 0.80 | 15 | 12.00 | | | Becerra, Julio J | g | | 2420 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Rodriguez, Eric | | | 2245 | USA | 0.00 | 1 | -0.22 | 15 | -3.30 | | | * 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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