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Individual Calculations October 2015 |
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| Zapata, Alonso Total change: 18.60 | |   |
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| 2015 U.S. Masters Championship | Greensboro, North Carolina | USA | 2015-08-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2398 | 2445 | 6.50 | 9 | 1.51 | 10 | 15.10 | |
|  Prilleltensky, Matan | | | 2174 | USA | 0.50 | 1 | -0.33 | 10 | -3.30 | |  Myers, Dominique | | | 2134 | USA | 0.50 | 1 | -0.36 | 10 | -3.60 | | | Adamson, Robby | f | | 2274 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Wang, Kevin | f | | 2319 | USA | 1.00 | 1 | 0.33 | 10 | 3.30 | | | Kamsky, Gata | g | | 2670 | USA | 0.50 | 1 | 0.28 | 10 | 2.80 | | | Ortiz Suarez, Isan Reynaldo | g | | 2577 | CUB | 0.00 | 1 | -0.32 | 10 | -3.20 | | | Cox, John J | m | | 2360 | ENG | 1.00 | 1 | 0.38 | 10 | 3.80 | | | Xiong, Jeffery | m | | 2544 | USA | 1.00 | 1 | 0.64 | 10 | 6.40 | | | Hernandez Carmenate, Holden | g | | 2533 | USA | 1.00 | 1 | 0.62 | 10 | 6.20 | |
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) | | | | American Chess Promotions Open | Chamblee, Georgia | USA | 2015-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2154 | 2445 | 4.50 | 5 | 0.35 | 10 | 3.50 | |
| | Butros, Ryan Tayla | | | 2132 | TUR | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Wu, Logan | | | 2045 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Potula, Kapish | | | 2045 * | USA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Francisco, Richard Tyler | | | 2271 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Cheng, Xiao | f | | 2277 | USA | 0.50 | 1 | -0.22 | 10 | -2.20 | | | * 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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