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Individual Calculations July 2009 |
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| Kelleher, Jeff Total change: 2.70 | |   |
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| 2009 New York May Open | New York, New York | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 2091 | 1.50 | 3 | 0.18 | 15 | 2.70 | |
|  Zenyuk, Iryna | c | wm | 2305 | USA | 0.00 | 1 | -0.23 | 15 | -3.45 | |  Berg, George P | | | 2085 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Frumkin, Edward A | | | 2034 | USA | 1.00 | 1 | 0.42 | 15 | 6.30 | |
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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