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Individual Calculations September 2011 |
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| Chan, James Total change: 24.15 | |   |
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| 8th Annual Philadelphia International | Philadelphia, Pennsylvania | USA | 2011-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 1987 | 3.50 | 7 | 0.25 | 15 | 3.75 | |
|  Gorman, Dov | f | | 2323 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Nieto, Manuel G | | | 1886 | COL | 0.50 | 1 | -0.14 | 15 | -2.10 | |  Mayers, Dan | | | 1964 | USA | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Aaron, Deepak | | | 2288 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Katz, Benjamin | | | 2104 | USA | 0.00 | 1 | -0.34 | 15 | -5.10 | | | Nieto, Guillermo L | | | 1825 | COL | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Vazquez Maccarini, Danitza F | | wf | 1785 | PUR | 1.00 | 1 | 0.24 | 15 | 3.60 | |
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) | | | | 39th Annual World Open - U2400 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2168 | 1987 | 1.50 | 7 | -0.38 | 15 | -5.70 | |
| | Shahade, Michael | f | | 2266 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Alvarez, Franklin | | | 2156 | DOM | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Bick, John D | f | | 2237 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Cooke, Eric N | | | 2147 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Vertkin, Sergey | | | 2175 | RUS | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Goss, Mel H | | | 2084 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Murthy, Pappu L N | | | 2112 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | |
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) | | | | 48th Canadian Open Chess Championship 2011 | Toronto, Ontario | CAN | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2273 | 1988 | 0.50 | 5 | -0.37 | 15 | -5.55 | |
| | Regan, Kenneth W. | m | | 2388 * | USA | 0.50 | 1 | 0.42 | 15 | 6.30 | | | Hebert, Jean | m | | 2388 * | CAN | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Castaneda, Nelson | f | | 2229 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Barrios, Felix | | | 2202 | COL | 0.00 | 1 | -0.23 | 15 | -3.45 | | | Ibrahim, Ismail | | | 2156 | AFG | 0.00 | 1 | -0.28 | 15 | -4.20 | | | * 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) | | | | Portland Chess Club Centennial Open | Portland, Oregon | USA | 2011-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2201 | 1988 | 3.50 | 6 | 2.11 | 15 | 31.65 | |
| | Patterson, Roger | | | 2141 | CAN | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Bragg, David R | f | | 2204 | USA | 1.00 | 1 | 0.78 | 15 | 11.70 | | | Roper, David C | f | | 2278 | USA | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Breckenridge, Steven | | | 2220 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Pendergast, Michael | | | 2160 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Yu, Corbin Zachary | | | 2201 | USA | 0.50 | 1 | 0.27 | 15 | 4.05 | |
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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