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Individual Calculations September 2021 |
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| Harel Raz, Eden Total change: 7.60 | |   |
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| Chess4all- Summer in Savyon B | Savyon | ISR | 2021-07-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1332 | 1100 | 0.00 | 2 | -0.43 | 40 | -17.20 | |
|  Zakin, Ilay | | | 1248 | ISR | 0.00 | 1 | -0.30 | 40 | -12.00 | |  Sherman, Esther | | | 1416 | ISR | 0.00 | 1 | -0.13 | 40 | -5.20 | |
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) | | | | Israeli team U14 championship, Nahum Naftali memorial | Afula | ISR | 2021-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1198 | 1100 | 2.50 | 5 | 0.62 | 40 | 24.80 | |
| | Weber, Yonatan | | | 1384 | ISR | 1.00 | 1 | 0.84 | 40 | 33.60 | | | Landa, Rom | | | 1212 | ISR | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Kats, Itay | | | 1239 | ISR | 0.00 | 1 | -0.31 | 40 | -12.40 | | | Levitan, Liel | | | 1131 | ISR | 0.50 | 1 | 0.04 | 40 | 1.60 | | | Abov, Maor | | | 1026 | ISR | 1.00 | 1 | 0.40 | 40 | 16.00 | |
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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