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Individual Calculations September 2017 |
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| Dayan, Itay Total change: -27.80 | |   |
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| Kfar Saba Weekend 2017 C | Kfar Saba | ISR | 2017-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1386 | 1472 | 1.00 | 3 | -0.77 | 20 | -15.40 | |
|  Bronstein, Paz | | | 1468 | ISR | 0.00 | 1 | -0.51 | 20 | -10.20 | |  Gorenbein, Michal | | | 1119 | ISR | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Ofek, Omri | | | 1570 | ISR | 0.00 | 1 | -0.37 | 20 | -7.40 | |
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) | | | | Kiryat Ono 8th Summer Festival 2017 weekend A | Kiryat Ono | ISR | 2017-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1495 | 1415 | 2.00 | 4 | 0.36 | 20 | 7.20 | |
| | Geffen, Maor | | | 1311 | ISR | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Levanzov, Evgeny | | | 1752 | ISR | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Solel, Tomer | | | 1517 | ISR | 1.00 | 1 | 0.64 | 20 | 12.80 | | | Weissberg, Harel | | | 1398 | ISR | 0.00 | 1 | -0.52 | 20 | -10.40 | |
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) | | | | Herzliya Summer Festival 2017 Open B | Herzliya | ISR | 2017-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1544 | 1415 | 1.00 | 6 | -0.98 | 20 | -19.60 | |
| | Perry, Tal | | | 1606 | ISR | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Cohen, Elad | | | 1564 | ISR | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Lazevnikov, Yefim | | | 1567 | ISR | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Milatin, Zvi | | | 1593 | ISR | 0.00 | 1 | -0.27 | 20 | -5.40 | | | Cohen, Yaacov | | | 1518 | ISR | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Raiko, Gal | | | 1416 | ISR | 1.00 | 1 | 0.50 | 20 | 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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