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Individual Calculations August 2021 |
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| Zemach, Roee Total change: -19.60 | |   |
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| Liga Arzit Merkaz 2021 Rounds 7-8 | Various | ISR | 2021-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2195 | 2267 | 1.00 | 2 | -0.19 | 40 | -7.60 | |
|  Porat, Daniel | | | 2155 | ISR | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Kuprijanov, Anatoly | f | | 2235 | RUS | 0.50 | 1 | -0.04 | 40 | -1.60 | |
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) | | | | 11th Kiryat Ono Summer Festival Open A | Kiryat Ono | ISR | 2021-07-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2215 | 2267 | 2.50 | 5 | -0.30 | 40 | -12.00 | |
|  Tsirilman, Guy | | | 1986 | ISR | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Rozen, Eytan | m | | 2386 | ISR | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Kupervaser, Erez | f | | 2372 | ISR | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Aharon, Ofir | f | | 2259 | ISR | 0.00 | 1 | -0.51 | 40 | -20.40 | | | Dvir, Ofir | | | 2073 | ISR | 1.00 | 1 | 0.25 | 40 | 10.00 | |
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) | | |
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