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Individual Calculations May 2010 |
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| Kats, Alena Total change: 27.60 | |   |
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| 40th Annual World Amateur Team & US Tean East | Parsippany, New Jersey | USA | 2010-02-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2310 | 2013 | 0.00 | 3 | -0.46 | 15 | -6.90 | |
|  Sarkar, Justin | m | | 2378 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Rouleau, John | | | 2278 | USA | 0.00 | 1 | -0.18 | 15 | -2.70 | |  Mac Intyre, Paul | f | | 2273 | USA | 0.00 | 1 | -0.18 | 15 | -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 March Open | New York, New York | USA | 2010-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2138 | 2013 | 2.00 | 3 | 0.94 | 15 | 14.10 | |
| | Spigel, David E | | | 2008 | USA | 1.00 | 1 | 0.49 | 15 | 7.35 | | | Bonin, Jay R | m | | 2334 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Fisher, William | | | 2071 | USA | 1.00 | 1 | 0.58 | 15 | 8.70 | |
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) | | | | Philadelphia Open | Philadelphia, Pennsylvania | USA | 2010-03-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2195 | 2013 | 3.50 | 8 | 1.36 | 15 | 20.40 | |
| | Gorman, Dov | f | | 2266 | USA | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Privman, Boris | f | | 2140 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Daly, Troy | | | 2143 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Sivakumar, Kavinay | | | 2024 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Kudryavtsev, Vadim | | | 2215 | RUS | 1.00 | 1 | 0.76 | 15 | 11.40 | | | Rogers, Norman | f | | 2239 | USA | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Figler, Ilye | f | | 2297 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Treger, Yefim | | | 2239 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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) | | |
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