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Individual Calculations January 2019 |
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| Vaisman, Michael Total change: 38.80 | |   |
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| Artzit Youth League - Center 2018/9 5-7 | Various | ISR | 2018-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1679 | 1533 | 1.00 | 2 | 0.39 | 40 | 15.60 | |
|  Efrati, Alon | | | 1726 | ISR | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Munte, Noa | | | 1632 | ISR | 0.50 | 1 | 0.14 | 40 | 5.60 | |
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) | | | | Israel Youth Championship U13 Qualifier 2018 Center | Kiryat Ono | ISR | 2018-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1346 | 1552 | 3.50 | 4 | 0.58 | 40 | 23.20 | |
| | Boton, Noam | | | 1152 * | ISR | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Fisher, Lidor | | | 1247 | ISR | 1.00 | 1 | 0.14 | 40 | 5.60 | | | Hatuka, Liron | | | 1324 | ISR | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Kopaloff, Liam | | | 1662 | ISR | 1.00 | 1 | 0.65 | 40 | 26.00 | | | * 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) | | |
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