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Individual Calculations September 2013 |
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| Gorodetzky, David Total change: -15.30 | |   |
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| Gideon Japhet International Open A | Jerusalem | ISR | 2013-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2185 | 1930 | 0.00 | 4 | -0.78 | 15 | -11.70 | |
|  Kobo, Ori | f | | 2307 | ISR | 0.00 | 1 | -0.09 | 15 | -1.35 | |  Gershkowich, David | f | | 2202 | ISR | 0.00 | 1 | -0.17 | 15 | -2.55 | | | Zak, Arad | | | 2100 | ISR | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Berenboym, Igor | | | 2130 | ISR | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | Grand Prize 2013 Youth | Tel Aviv | ISR | 2013-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1987 | 1930 | 1.50 | 4 | -0.24 | 15 | -3.60 | |
| | Vuller, Victoria | | | 1530 * | ISR | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Mindlin, Alon | | | 2263 | ISR | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Kobo, Ori | f | | 2307 | ISR | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Poleg, Dan | | | 1847 | ISR | 0.50 | 1 | -0.11 | 15 | -1.65 | | | * 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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