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Individual Calculations July 2015 |
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| Zhou, Qiyu Total change: -18.00 | |   |
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| North American Youth Chess Festival 2015 U18 Women | Toluca, Estado de Mexico | MEX | 2015-05-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1774 | 2069 | 7.50 | 9 | 0.00 | 40 | 0.00 | |
|  Villegas Gomez, Getsemani | | | 1669 * | MEX | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Avila Fraire, Ameyalli | | | 1746 | MEX | 0.00 | 1 | -0.87 | 40 | -34.80 | | | Pitol Martinez, Estefania | | | 1736 | MEX | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Alarcon Morales, Alicia | | wc | 1713 | MEX | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Samadashvili, Martha | | wf | 1682 | USA | 0.50 | 1 | -0.41 | 40 | -16.40 | | | Herrera Camara, Genny Ceci | | wc | 1844 | MEX | 1.00 | 1 | 0.22 | 40 | 8.80 | | | Hurtado Romero, Karen Zayde | | | 1718 | MEX | 1.00 | 1 | 0.11 | 40 | 4.40 | | | Alarcon Morales, Elvira | | wm | 1867 | MEX | 1.00 | 1 | 0.24 | 40 | 9.60 | | | Fuentes Godoy, Lilia Ivonne | | wf | 1994 | MEX | 1.00 | 1 | 0.40 | 40 | 16.00 | | | * 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) | | | | The Outaouais Regional Open 2015 | Gatineau | CAN | 2015-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2055 | 2144 | 2.50 | 5 | -0.49 | 40 | -19.60 | |
| | Echavarria-Hidalgo, Fernando | | | 1871 | CAN | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Qin, Ziyi | | | 2234 | CAN | 0.00 | 1 | -0.38 | 40 | -15.20 | | | Gauthier, Denis | | | 1808 | CAN | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Wan, Kevin | | | 2146 | CAN | 0.00 | 1 | -0.50 | 40 | -20.00 | | | Simic, Dusan | | | 2217 | SRB | 0.50 | 1 | 0.10 | 40 | 4.00 | |
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) | | | | 2015 Eastern Ontario Open | Ottawa | CAN | 2015-06-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2077 | 2144 | 3.00 | 5 | 0.04 | 40 | 1.60 | |
| | Doubleday, William G. | | | 1988 | CAN | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Pacey, Kevin | | | 2099 | CAN | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Wan, Kevin | | | 2146 | CAN | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Pace, Christopher | | | 2087 | CAN | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Dunne, Francesco | | | 2064 | CAN | 0.00 | 1 | -0.61 | 40 | -24.40 | |
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) | | |
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