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Individual Calculations October 2008 |
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| Ostrovskiy, Aleksandr Total change: 29.25 | |   |
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| NY August Open | New York, NY | USA | 2008-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2265 | 2083 | 1.50 | 4 | 0.42 | 25 | 10.50 | |
|  Braylovskiy, Grigory | | | 2354 | USA | 0.50 | 1 | 0.33 | 25 | 8.25 | | | Treger, Yefim | | | 2218 | USA | 0.50 | 1 | 0.18 | 25 | 4.50 | |  Getz, Alec | | | 2161 | USA | 0.50 | 1 | 0.11 | 25 | 2.75 | | | Figler, Ilye | f | | 2325 | USA | 0.00 | 1 | -0.20 | 25 | -5.00 | |
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) | | | NOTE: K factor changed | | 130th Annual New York State Championship | Albany, New York | USA | 2008-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2161 | 2083 | 2.50 | 5 | 0.46 | 15 | 6.90 | |
| | Lenderman, Alex | m | | 2433 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Lisle, Mark A | | | 1823 | USA | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Parry, Matt J | | | 2270 | USA | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Sharp, Dale E | | | 2063 | USA | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Treger, Yefim | | | 2218 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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) | | | NOTE: K factor changed | | New York September Open | New York, New York | USA | 2008-09-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2176 | 2083 | 2.00 | 3 | 0.79 | 15 | 11.85 | |
| | Robinson, Darrian | | | 1928 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Gaillard, Edward A | | | 2166 | USA | 1.00 | 1 | 0.61 | 15 | 9.15 | | | Lenderman, Alex | m | | 2433 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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