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Individual Calculations July 2011 |
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| Ivanov, Alexander Total change: -10.80 | |   |
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| 80th Massachusetts Open | Marlboro, Massachusetts | USA | 2011-05-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2371 | 2549 | 4.00 | 5 | 0.38 | 10 | 3.80 | |
|  Castaneda, Nelson | f | | 2220 | USA | 1.00 | 1 | 0.12 | 10 | 1.20 | |  Shmelov, Denys K | | | 2399 | UKR | 0.50 | 1 | -0.20 | 10 | -2.00 | | | Vigorito, David | m | | 2419 | USA | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Foygel, Igor | m | | 2485 | USA | 0.50 | 1 | -0.09 | 10 | -0.90 | | | Riordan, Charles R | f | | 2334 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | |
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) | | | | 4th New York International | New York, New York | USA | 2011-06-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2281 | 2549 | 1.00 | 3 | -1.46 | 10 | -14.60 | |
| | Pressman, Leif A | | | 2230 | USA | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Mandizha, Farai | f | | 2395 | ZIM | 0.00 | 1 | -0.71 | 10 | -7.10 | | | Vazquez, Raul | c | | 2217 | PUR | 0.00 | 1 | -0.88 | 10 | -8.80 | |
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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