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Individual Calculations July 2010 |
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| Chiang, Michael Total change: -2.10 | |   |
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| 2010 National Open | Las Vegas, Nevada | USA | 2010-06-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2130 | 1970 | 1.50 | 5 | -0.05 | 15 | -0.75 | |
|  Young, Gregory | | | 2268 | USA | 0.00 | 1 | -0.15 | 15 | -2.25 | |  Alvarez, Ernesto | | | 2257 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Haring, Ruth Inez | | wm | 1980 | USA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Frey, Charles F | | | 1944 | USA | 1.00 | 1 | 0.46 | 15 | 6.90 | | | Troff, Kayden W | | | 2201 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | |
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) | | | | 3rd Ney York International | New York, New York | USA | 2010-06-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2244 | 1970 | 1.00 | 6 | -0.09 | 15 | -1.35 | |
| | Bonin, Jay R | m | | 2305 | USA | 1.00 | 1 | 0.88 | 15 | 13.20 | | | Esserman, Marc R | m | | 2370 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Figler, Ilye | f | | 2290 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Ostrovskiy, Aleksandr | c | | 2254 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Vulis, Daniel | | | 2121 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Katz, Benjamin J | | | 2121 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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