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Individual Calculations February 2015 |
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| Jacobson, Aaron Total change: 153.60 | |   |
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| 98th Annual Marshall Chess Club Championship | New York, New York | USA | 2014-12-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2207 | 1969 | 5.50 | 9 | 3.58 | 40 | 143.20 | |
|  Melekhina, Alisa | f | wm | 2200 | USA | 0.00 | 1 | -0.21 | 40 | -8.40 | |  Hulse, Brian | f | | 2101 | USA | 1.00 | 1 | 0.68 | 40 | 27.20 | | | Chernin, Oliver | | | 2173 | USA | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Pressman, Leif | f | | 2300 | USA | 0.00 | 1 | -0.12 | 40 | -4.80 | | | Wang, Warren | | | 2048 | USA | 1.00 | 1 | 0.61 | 40 | 24.40 | | | Huang, Gary | | | 2170 | USA | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Herman, Matthew J | | | 2369 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Chandran, Kapil | c | | 2264 | USA | 0.50 | 1 | 0.35 | 40 | 14.00 | | | Taborsky, Rostisla | f | | 2239 | CZE | 1.00 | 1 | 0.83 | 40 | 33.20 | | | * 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) | | | | 24th Annual North American Open | Las Vegas, Nevada | USA | 2014-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2181 | 1969 | 2.50 | 9 | 0.26 | 40 | 10.40 | |
| | Sturt, Raven | | | 2297 | USA | 1.00 | 1 | 0.87 | 40 | 34.80 | | | Viswanadha, Kesav | m | | 2369 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Kretchetov, Alexan | f | | 2234 | RUS | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Velikanov, Alexander | f | | 2234 | USA | 0.00 | 1 | -0.18 | 40 | -7.20 | | | Hu, Bryan | | | 2185 | USA | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Bian, Alex | f | | 2127 | USA | 0.50 | 1 | 0.21 | 40 | 8.40 | | | Wang, Michael | | | 2112 | USA | 0.50 | 1 | 0.19 | 40 | 7.60 | | | Wang, Qibiao | | | 2218 | CHN | 0.00 | 1 | -0.19 | 40 | -7.60 | | | Steger, Eric Alan | | | 1850 | USA | 0.50 | 1 | -0.16 | 40 | -6.40 | | | * 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) | | |
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