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Individual Calculations May 2021 |
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| Parkhov, Yair Total change: 7.20 | |   |
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| Elitzur GM Winter 2020 B Stage 2 | Petah Tikva | ISR | 2021-04-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2398 | 2417 | 1.50 | 2 | 0.45 | 10 | 4.50 | |
|  Ben Ari, Yannay | f | | 2400 | ISR | 0.50 | 1 | -0.02 | 10 | -0.20 | |  Solomon, Asif | f | | 2396 | ISR | 1.00 | 1 | 0.47 | 10 | 4.70 | |
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) | | | | Israeli national league. Rounds 1-2 | Various | ISR | 2021-04-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2515 | 2417 | 1.00 | 2 | 0.27 | 10 | 2.70 | |
| | Zoler, Dan | g | | 2483 | ISR | 1.00 | 1 | 0.59 | 10 | 5.90 | | | Boruchovsky, Avital | g | | 2547 | ISR | 0.00 | 1 | -0.32 | 10 | -3.20 | |
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) | | |
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