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Individual Calculations July 2009 |
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| Ostrovskiy, Aleksandr Total change: 27.60 | |   |
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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 |
| 2329 | 2071 | 1.00 | 2 | 0.61 | 15 | 9.15 | |
|  Zenyuk, Iryna | c | wm | 2237 | USA | 0.50 | 1 | 0.22 | 15 | 3.30 | |  Sarkar, Justin | m | | 2421 | USA | 0.50 | 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 |
| 2216 | 2061 | 2.50 | 4 | 1.23 | 15 | 18.45 | |
| | Sarkar, Justin | m | | 2410 | USA | 1.00 | 1 | 0.89 | 15 | 13.35 | | | Ravichandran, Siddharth | | | 2303 | IND | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Harding, Andre E | | | 1970 | USA | 1.00 | 1 | 0.38 | 15 | 5.70 | | | West, James R | | | 2180 | USA | 0.50 | 1 | 0.16 | 15 | 2.40 | |
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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