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Individual Calculations April 2009 |
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| Yee, Michael A Total change: 7.20 | |   |
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| 18th Annual North American Open | Las vegas, Nevada | USA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2057 | 2069 | 2.50 | 5 | -0.08 | 15 | -1.20 | |
|  Lucky, David | f | | 2303 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | |  Harmon-Vellotti, Luke | | | 1978 | USA | 0.00 | 1 | -0.62 | 15 | -9.30 | | | Haring, Ruth I | | wm | 2091 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Huang, Richard | | | 1847 | CAN | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Velikanov, Alexander | | | 2067 | USA | 0.50 | 1 | 0.00 | 15 | 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 | K | K*chg | Game |
| 2210 | 2071 | 1.50 | 3 | 0.56 | 15 | 8.40 | |
| | Steinfl, Alessandro | | | 2242 | ITA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Tan, Derek J | | | 2143 | USA | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Iwamoto, Takashi | f | | 2245 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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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