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Individual Calculations April 2009 |
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| He, Tianyi Total change: 42.50 | |   |
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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 |
| 2201 | 2094 | 1.50 | 3 | 0.38 | 25 | 9.50 | |
|  Harmon-Vellotti, Luke | | | 1978 | USA | 1.00 | 1 | 0.34 | 25 | 8.50 | |  Naroditsky, Daniel | f | | 2382 | USA | 0.50 | 1 | 0.34 | 25 | 8.50 | | | Villanueva, Hugo | | | 2242 | PHI | 0.00 | 1 | -0.30 | 25 | -7.50 | |
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) | | | | 26th Annual U.S Amateur Team West | Woodland Hills, CA | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2291 | 2064 | 2.00 | 3 | 1.32 | 25 | 33.00 | |
| | Shankland, Samuel | m | | 2414 | USA | 1.00 | 1 | 0.89 | 25 | 22.25 | | | Del Pilar, Reynaldo | | | 2233 | USA | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Yanayt, Eugene | f | | 2225 | USA | 1.00 | 1 | 0.71 | 25 | 17.75 | |
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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