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Individual Calculations July 2011 |
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| Ostrovskiy, Aleksandr Total change: 27.15 | |   |
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| 2011 Marshall Chess Club FIDE Mondays | New York, New York | USA | 2011-04-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2042 | 2295 | 1.00 | 1 | 0.19 | 15 | 2.85 | |
|  Layevskiy, Michael | | | 2042 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | |
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) | | | | The New Yorker Open - U2400 Section | New York, New York | USA | 2011-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2076 | 2267 | 1.00 | 2 | -0.48 | 15 | -7.20 | |
| | Margiotta, Jason J | | | 1984 | USA | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Williams, Justus D | | | 2167 | USA | 0.00 | 1 | -0.64 | 15 | -9.60 | |
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 |
| 2411 | 2267 | 5.00 | 9 | 2.10 | 15 | 31.50 | |
| | Harikrishna, P | g | | 2666 | IND | 1.00 | 1 | 0.92 | 15 | 13.80 | |  Lapshun, Yury | m | | 2442 | USA | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Kekelidze, Mikheil | g | | 2463 | GEO | 0.00 | 1 | -0.25 | 15 | -3.75 | | | Molner, Mackenzie | m | | 2464 | USA | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Zhao, Parker Bi-Guang | | | 2359 | USA | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Wang, Andrew C | | | 2157 | USA | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Piasetski, Leon D | m | | 2301 | CAN | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Romanenko, Vladimir | m | | 2467 | BLR | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Ariel, Donny | f | | 2381 | 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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