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Individual Calculations August 2021 |
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| Gavriely, Or Total change: 116.40 | |   |
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| Kiryat Ono Start of Summer 2021 A | Kiryat Ono | ISR | 2021-06-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1739 | 1611 | 4.00 | 5 | 2.18 | 40 | 87.20 | |
|  Medovoy, Yaniv | | | 1463 | ISR | 1.00 | 1 | 0.30 | 40 | 12.00 | |  Amit, Eli | | | 1968 | ISR | 1.00 | 1 | 0.89 | 40 | 35.60 | | | Rozen, Guy | | | 1946 | ISR | 1.00 | 1 | 0.88 | 40 | 35.20 | | | Ribstein, Orel | | | 1807 | ISR | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Duchan, Yoav | | | 1512 | ISR | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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 Open July 2021 | Herzliya | ISR | 2021-07-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1425 | 1737 | 3.00 | 4 | -0.43 | 40 | -17.20 | |
| | Soybert, Ori | | | 1377 | ISR | 0.00 | 1 | -0.90 | 40 | -36.00 | | | Gavrielov, Shlomo | | | 1446 | ISR | 1.00 | 1 | 0.15 | 40 | 6.00 | | | Cohen, Yaacov | | | 1338 | ISR | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Lahav, Doron | | | 1537 | ISR | 1.00 | 1 | 0.24 | 40 | 9.60 | |
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) | | | | Liga Alef Shfela 2021 Rounds 7-8 | Various | ISR | 2021-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1915 | 1737 | 1.00 | 1 | 0.73 | 40 | 29.20 | |
| | Raiko, Yossi | | | 1915 | ISR | 1.00 | 1 | 0.73 | 40 | 29.20 | |
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 |
| 2069 | 1737 | 1.00 | 4 | 0.43 | 40 | 17.20 | |
| | Cohen, Or | f | | 2137 * | ISR | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Aharon, Ofir | f | | 2137 * | ISR | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Tratatovici, Dan | | | 2137 * | ISR | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Ribstein, Orel | | | 1863 | ISR | 1.00 | 1 | 0.67 | 40 | 26.80 | | | * 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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