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Individual Calculations August 2021 |
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| Kupervaser, Erez Total change: 11.60 | |   |
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| Liga Arzit Zafon 2021 Rounds 7-8 | Various | ISR | 2021-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2260 | 2372 | 1.50 | 2 | 0.20 | 20 | 4.00 | |
|  Kreizberg, Michael | f | | 2320 | ISR | 0.50 | 1 | -0.07 | 20 | -1.40 | |  Friedland, Moshe | f | | 2199 | ISR | 1.00 | 1 | 0.27 | 20 | 5.40 | |
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) | | | | 11th Kiryat Ono Summer Festival Open A | Kiryat Ono | ISR | 2021-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2181 | 2372 | 4.00 | 5 | 0.38 | 20 | 7.60 | |
| | Zalkind, Konstantin | f | | 2130 | ISR | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Tratatovici, Dan | | | 2157 | ISR | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Zemach, Roee | f | | 2267 | ISR | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Levitan, Ronit | | wc | 1972 * | ISR | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Ben Ari, Yannay | f | | 2380 | ISR | 0.50 | 1 | 0.01 | 20 | 0.20 | | | * 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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