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Individual Calculations July 2009 |
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| Erenburg, Sergey Total change: -19.30 | |   |
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| Israel National League 2009 | Various | ISR | 2009-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2556 | 2587 | 1.50 | 5 | -1.20 | 10 | -12.00 | |
|  Roiz, Michael | g | | 2647 | ISR | 0.00 | 1 | -0.42 | 10 | -4.20 | |  Rozentalis, Eduardas | g | | 2590 | LTU | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Caspi, Israel | m | | 2402 | ISR | 1.00 | 1 | 0.26 | 10 | 2.60 | | | Mikhalevski, Victor | g | | 2608 | ISR | 0.00 | 1 | -0.47 | 10 | -4.70 | | | Kovalev, Andrei | g | | 2534 | BLR | 0.00 | 1 | -0.57 | 10 | -5.70 | |
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) | | | | Final Four of College Chess | Richardson, Texas | USA | 2009-04-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2379 | 2583 | 1.50 | 3 | -0.73 | 10 | -7.30 | |
| | Schwarz, Daniel | | | 2233 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Fernandez, Daniel | m | | 2369 | USA | 0.00 | 1 | -0.77 | 10 | -7.70 | | | Kuljasevic, Davoric | m | | 2536 | CRO | 0.50 | 1 | -0.07 | 10 | -0.70 | |
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) | | |
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