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Individual Calculations January 2011 |
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| Gershenov, Ben Total change: 3.30 | |   |
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| 17th Annual Eastern Chess Congress | Stamford, Connecticut | USA | 2010-11-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1978 | 2044 | 1.00 | 1 | 0.41 | 15 | 6.15 | |
|  Margiotta, Jason J | | | 1978 | USA | 1.00 | 1 | 0.41 | 15 | 6.15 | |
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 National Chess Congress | Philadelphia, Pennsylvania | USA | 2010-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2269 | 2044 | 0.50 | 3 | -0.19 | 15 | -2.85 | |
|  Pressman, Leif A | | | 2140 | USA | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Kaufman, Raymond | m | | 2295 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Zaikov, Oleg N | f | | 2372 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | |
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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