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Individual Calculations April 2009 |
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| Tate, Emory A Total change: -7.80 | |   |
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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 |
| 2240 | 2339 | 0.00 | 1 | -0.64 | 10 | -6.40 | |
|  Zierk, Steven C | | | 2240 | USA | 0.00 | 1 | -0.64 | 10 | -6.40 | |
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) | | | | 41st Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2362 | 2333 | 1.50 | 3 | 0.14 | 10 | 1.40 | |
|  Kacheishvili, Giorgi | g | | 2590 | GEO | 0.00 | 1 | -0.18 | 10 | -1.80 | | | Vulis, Daniel | | | 2035 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Smith, Bryan G | m | | 2462 | USA | 0.50 | 1 | 0.17 | 10 | 1.70 | |
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) | | | | Land of the Sky XXII | Ashville, North Carolina | USA | 2009-01-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2141 | 2333 | 2.00 | 3 | -0.23 | 10 | -2.30 | |
| | Moon, Ryan Joseph | | | 2213 | USA | 0.00 | 1 | -0.66 | 10 | -6.60 | | | Barsky, Sam | | | 2074 | USA | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Wheeler, Jerry T | f | | 2137 | USA | 1.00 | 1 | 0.25 | 10 | 2.50 | |
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) | | | | Western Chess Congress | Concord, California | USA | 2009-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2239 | 2333 | 2.00 | 3 | 0.13 | 10 | 1.30 | |
| | Agarwal, Rohan | | | 2190 | USA | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Gutman, Joshua | | | 2133 | USA | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Zilberstein, Dmitry | m | | 2393 | USA | 0.50 | 1 | 0.08 | 10 | 0.80 | |
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) | | | | 7th Annual Western Pacific Open | Los Angeles, CA | USA | 2009-03-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2157 | 2333 | 2.00 | 3 | -0.18 | 10 | -1.80 | |
| | Kurosaki, Takashi | | | 2124 | USA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Baghdasaryan, Garnik | | | 2076 | ARM | 1.00 | 1 | 0.18 | 10 | 1.80 | | | Small, Gregg H | | | 2271 | USA | 0.00 | 1 | -0.59 | 10 | -5.90 | |
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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