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Individual Calculations November 2009 |
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| Bonin, Jay Total change: -0.90 | |   |
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| 131st Annual NY State Championship | Albany, New York | USA | 2009-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2563 | 2371 | 1.00 | 3 | 0.25 | 10 | 2.50 | |
|  Benjamin, Joel | g | | 2566 | USA | 1.00 | 1 | 0.75 | 10 | 7.50 | | | Kacheishvili, Giorgi | g | | 2581 | GEO | 0.00 | 1 | -0.23 | 10 | -2.30 | |  Lenderman, Alex | m | | 2542 | USA | 0.00 | 1 | -0.27 | 10 | -2.70 | |
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) | | | | New York October Open | New York, New York | USA | 2009-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2404 | 2371 | 1.00 | 3 | -0.34 | 10 | -3.40 | |
| | Pressman, Leif A | | | 2098 | USA | 0.50 | 1 | -0.33 | 10 | -3.30 | | | Lenderman, Alex | m | | 2542 | USA | 0.50 | 1 | 0.23 | 10 | 2.30 | | | Kudrin, Sergey | g | | 2573 | USA | 0.00 | 1 | -0.24 | 10 | -2.40 | |
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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