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Individual Calculations May 2015 |
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| Lahav, Michal Total change: 34.40 | |   |
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| Liga Alef Shfela 2015 Round 4-6 | various | ISR | 2015-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 1828 | 1.50 | 2 | 0.98 | 40 | 39.20 | |
|  Bar-Or, Ornan | | | 1912 | ISR | 0.50 | 1 | 0.12 | 40 | 4.80 | |  Elinson, Eliahu | | | 2139 | ISR | 1.00 | 1 | 0.86 | 40 | 34.40 | |
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) | | | | Israel Youth Championship Under 16 - 2015 | Ayanot | ISR | 2015-03-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 1828 | 2.50 | 6 | 0.28 | 40 | 11.20 | |
| | Triger, Ramon | | | 1997 | ISR | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Feldman, Antony | | | 1853 | ISR | 0.00 | 1 | -0.47 | 40 | -18.80 | | | Hochman, Elnatan | | | 2024 | ISR | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Friedland, Moshe | | | 2019 | ISR | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Barak, Gil | | | 1951 | ISR | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Abend, Ilay | | | 1729 | 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) | | | | Israel U16 Girls championship 2015 | Tel Aviv | ISR | 2015-04-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1954 | 1919 | 0.50 | 2 | -0.40 | 40 | -16.00 | |
| | Toporkova, Sofia | | | 1954 | RUS | 0.00 | 1 | -0.45 | 40 | -18.00 | | | Toporkova, Sofia | | | 1954 | RUS | 0.50 | 1 | 0.05 | 40 | 2.00 | |
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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