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Individual Calculations September 2011 |
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| Vertkin, Sergey Total change: -34.80 | |   |
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| 39th Annual World Open - U2400 Section | Philadelphia, Pennsylvania | USA | 2011-06-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2093 | 2175 | 2.00 | 6 | -1.65 | 15 | -24.75 | |
|  Pressman, Leif A | | | 2230 | USA | 0.00 | 1 | -0.42 | 15 | -6.30 | |  Itkis, Hana | | wf | 2044 | USA | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Zepeda, Lorena M | | wm | 2185 | ESA | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Vulis, Daniel | | | 2082 | USA | 0.00 | 1 | -0.63 | 15 | -9.45 | | | De Fotis, Gary C | | | 2032 | USA | 0.00 | 1 | -0.69 | 15 | -10.35 | | | Chan, James | | | 1987 | CAN | 1.00 | 1 | 0.26 | 15 | 3.90 | |
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) | | | | 41st Annual Continental Open | Sturbridge, Massachusetts | USA | 2011-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2048 | 2175 | 0.00 | 1 | -0.67 | 15 | -10.05 | |
| | Chandran, Kapil | | | 2048 | USA | 0.00 | 1 | -0.67 | 15 | -10.05 | |
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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