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Individual Calculations May 2010 |
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| Treger, Yefim Total change: -9.30 | |   |
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| Marshall CC FIDE Thursdays | New York, NY | USA | 2010-02-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2067 | 2253 | 2.00 | 4 | -0.96 | 15 | -14.40 | |
|  Berg, George P | | | 2046 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | |  Gaspard, Fritz | | | 2125 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Ray, Sarathi | | | 2085 | USA | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Santanna, Paulo | | | 2011 | USA | 0.50 | 1 | -0.30 | 15 | -4.50 | |
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 |
| 2228 | 2239 | 1.00 | 2 | -0.03 | 15 | -0.45 | |
| | Polyakin, Vladimir | | | 2121 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | | | Bonin, Jay R | m | | 2334 | USA | 0.00 | 1 | -0.37 | 15 | -5.55 | |
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 |
| 2233 | 2239 | 4.00 | 7 | 0.37 | 15 | 5.55 | |
| | Margiotta, Jason J | | | 2011 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Smith, Bryan G | m | | 2484 | USA | 0.00 | 1 | -0.20 | 15 | -3.00 | | | Harding, Andre E | | | 1988 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Ehlvest, Jaan | g | | 2598 | USA | 0.00 | 1 | -0.10 | 15 | -1.50 | | | Zhang, Jundi | | | 2092 | CHN | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Simutowe, Amon S | g | | 2444 | ZAM | 0.00 | 1 | -0.24 | 15 | -3.60 | | | Kats, Alena | | | 2013 | USA | 1.00 | 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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