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Individual Calculations April 2009 |
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| Oldham, David C Total change: 0.00 | |   |
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| 18th Annual North American Open | Las vegas, Nevada | USA | 2008-12-26 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 2133 | 0 | 1.00 | 6 | 0.00 | 1860 | | 0.00 | |
|  Aigner, Michael | | | 2229 | USA | 0.50 | 1 | 0.00 | | 0.00 | |  Moskow, Eric D | | | 2225 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Anderson, Renard W | f | | 2186 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Stein, Jeremy A | | | 2087 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Haring, Ruth I | | wm | 2091 | USA | 0.50 | 1 | 0.00 | | 0.00 | | | Harmon-Vellotti, Luke | | | 1978 | USA | 0.00 | 1 | 0.00 | | 0.00 | |
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) | | | | 26th Annual U.S Amateur Team West | Woodland Hills, CA | USA | 2009-02-14 |
| Rc | Ro | w | n | change | Rp | K | K*chg | Game |
| 1949 | 0 | 0.50 | 2 | 0.00 | 1756 | | 0.00 | |
| | Lazarus, Barry J | | | 1816 | USA | 0.00 | 1 | 0.00 | | 0.00 | | | Le, Cau Duong | | | 2081 | USA | 0.50 | 1 | 0.00 | | 0.00 | |
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) | | |
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