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Individual Calculations November 2009 |
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| Katz, Benjamin J Total change: 2.25 | |   |
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| 2009 New Jersey State Championship | Somerset, New Jersey | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 2128 | 1.50 | 2 | 0.23 | 15 | 3.45 | |
|  Lam, Fiona V | | | 1807 | USA | 1.00 | 1 | 0.13 | 15 | 1.95 | |  Radomskyj, Peter | | | 2199 | USA | 0.50 | 1 | 0.10 | 15 | 1.50 | |
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 |
| 2528 | 2128 | 0.00 | 1 | -0.08 | 15 | -1.20 | |
| | Kudrin, Sergey | g | | 2528 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | * 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) | | |
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