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Individual Calculations September 2017 |
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| Tsadka Darel, Darya Total change: -26.80 | |   |
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| Kiryat Ono 8th Summer Festival 2017 weekend A | Kiryat Ono | ISR | 2017-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1587 | 1414 | 1.00 | 3 | 0.06 | 40 | 2.40 | |
|  Sherman, Reem | | | 1635 | ISR | 0.00 | 1 | -0.22 | 40 | -8.80 | |  Geffen, Maor | | | 1311 | ISR | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Nareznoy, David | | | 1814 * | ISR | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | Herzliya Summer Festival 2017 Open C | Herzliya | ISR | 2017-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1266 | 1414 | 2.00 | 4 | -0.73 | 40 | -29.20 | |
| | Bishara, Omar | | | 1272 | ISR | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Ovadia, Tomer | | | 1271 | ISR | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Dvorsky, David | | | 1430 | ISR | 0.00 | 1 | -0.48 | 40 | -19.20 | | | Qasem, Muhamad Mody | | | 1089 | ISR | 0.00 | 1 | -0.87 | 40 | -34.80 | |
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) | | |
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