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Individual Calculations April 2009 |
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| Freix, Andrew J Total change: 8.50 | |   |
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| 35th Annual Eastern Open | Washington DC | USA | 2008-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2114 | 1953 | 1.50 | 5 | -0.03 | 25 | -0.75 | |
|  Getz, Alec | f | | 2222 | USA | 0.50 | 1 | 0.33 | 25 | 8.25 | |  Andrews, Todd D | f | | 2303 | USA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Rabin, Evan Z | | | 2027 | USA | 0.00 | 1 | -0.40 | 25 | -10.00 | | | Khojandi, Aryan | | | 2029 | USA | 1.00 | 1 | 0.60 | 25 | 15.00 | | | Dai, Yang | | | 1991 | USA | 0.00 | 1 | -0.45 | 25 | -11.25 | |
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) | | | | 39th Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2205 | 1963 | 1.00 | 3 | 0.37 | 25 | 9.25 | |
| | Pinkerton, James C | | | 2078 | USA | 1.00 | 1 | 0.66 | 25 | 16.50 | | | Zhang, Melvin | | | 2225 | USA | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Lapshun, Yury | m | | 2313 | USA | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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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