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Individual Calculations September 2011 |
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| Cummings, David Total change: 4.00 | |   |
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| 48th Canadian Open Chess Championship 2011 | Toronto, Ontario | CAN | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2231 | 2350 | 5.50 | 8 | 0.40 | 10 | 4.00 | |
|  Olheiser, Gordon | | | 1950 * | CAN | 0.50 | 1 | -0.42 | 10 | -4.20 | | | Melekhina, Alisa | f | wm | 2263 | USA | 1.00 | 1 | 0.38 | 10 | 3.80 | |  Itkin, David | | | 2025 | CAN | 1.00 | 1 | 0.13 | 10 | 1.30 | | | Gerzhoy, Leonid | m | | 2483 | CAN | 0.00 | 1 | -0.32 | 10 | -3.20 | | | Yee, Lorne | | | 2210 | CAN | 0.50 | 1 | -0.19 | 10 | -1.90 | | | Kaufman, Raymond | m | | 2293 | USA | 1.00 | 1 | 0.42 | 10 | 4.20 | | | Fedorowicz, John Peter | g | | 2454 | USA | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Campbell, Brett | f | | 2166 | CAN | 1.00 | 1 | 0.26 | 10 | 2.60 | | | * 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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