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Individual Calculations July 2009 |
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| Zenyuk, Iryna Total change: 6.90 | |   |
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| New York March Open | New York, New York | USA | 2009-03-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2129 | 2237 | 2.50 | 4 | -0.07 | 15 | -1.05 | |
|  Frumkin, Edward A | | | 2043 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Ostrovskiy, Aleksandr | c | | 2071 | USA | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Treger, Yefim | | | 2185 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Thaler, Michael | | | 2217 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | |
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) | | | | 11th Annual Foxwoods Open | Mashantucket, Connecticut | USA | 2009-04-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2252 | 2305 | 5.50 | 9 | 0.44 | 15 | 6.60 | |
| | Moroney, Timothy M | | | 1988 | USA | 0.50 | 1 | -0.37 | 15 | -5.55 | | | Rabin, Evan Z | | | 2033 | USA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Tuhrim, Richard J | | | 2022 | USA | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Ehlvest, Jaan | g | | 2606 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | | | Korley, Kassa | | | 2120 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Sammour Hasbun, Jorge | f | | 2460 | PLE | 0.00 | 1 | -0.29 | 15 | -4.35 | | | Schneider, Igor | f | | 2397 | USA | 1.00 | 1 | 0.63 | 15 | 9.45 | | | Sarkar, Justin | m | | 2410 | USA | 0.00 | 1 | -0.36 | 15 | -5.40 | | | Moon, Ryan Joseph | | | 2228 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | |
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) | | | | 2009 New York May Open | New York, New York | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2210 | 2305 | 2.50 | 4 | 0.09 | 15 | 1.35 | |
| | Kelleher, Jeff | | | 2091 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Bonin, Jay | m | | 2369 | USA | 0.50 | 1 | 0.09 | 15 | 1.35 | | | Robinson, Darrian | | | 1955 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Barbosa, Oliver | m | | 2426 | PHI | 0.00 | 1 | -0.34 | 15 | -5.10 | |
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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