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Individual Calculations April 2009 |
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| Porat, Maya Total change: -5.55 | |   |
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| Israel U20 League 2009 | Various | ISR | 2008-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2167 | 2.00 | 7 | -1.32 | 15 | -19.80 | |
|  Svoysky, Daniel | | | 2021 | ISR | 0.50 | 1 | -0.20 | 15 | -3.00 | |  Nabaty, Tamir | | | 2456 | ISR | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Popilski, Gil | c | | 2394 | ISR | 0.00 | 1 | -0.21 | 15 | -3.15 | | | Nakar, Eylon | | | 2187 | ISR | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Kirichenko, Alex | | | 2040 | ISR | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Ben Artzi, Ido | | | 2088 | ISR | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Ben Porat, Or | | | 2170 | ISR | 0.50 | 1 | 0.00 | 15 | 0.00 | |
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) | | | | Ashdod Festival 2008 | Ashdod | ISR | 2008-12-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2364 | 2167 | 2.50 | 6 | 0.95 | 15 | 14.25 | |
| | Maryasin, Boris | m | | 2340 | ISR | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Mikhalevski, Victor | g | | 2517 | ISR | 0.50 | 1 | 0.39 | 15 | 5.85 | | | Arlinsky, Uriel | | | 2277 | ISR | 1.00 | 1 | 0.65 | 15 | 9.75 | | | Kantsler, Boris | g | | 2491 | ISR | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Polyakov, Alex | | | 2268 | ISR | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Shevelev, Arkady | m | | 2292 | ISR | 0.00 | 1 | -0.33 | 15 | -4.95 | |
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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