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Individual Calculations September 2009 |
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| Doubleday, William Total change: -7.80 | |   |
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| 2009 Eastern Ontario Open Section A | Ottawa, Ontario | CAN | 2009-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1889 | 2097 | 1.00 | 1 | 0.23 | 15 | 3.45 | |
|  Xiong, Sonja | | | 1889 | CAN | 1.00 | 1 | 0.23 | 15 | 3.45 | |
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) | | | | 2009 Canadian Open | Edmonton, Alberta | CAN | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2172 | 2110 | 1.00 | 4 | -0.75 | 15 | -11.25 | |
| | Mulyar, Michael | m | | 2390 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Huang, Richard | | | 1888 | CAN | 0.00 | 1 | -0.78 | 15 | -11.70 | | | Jablon, Stephen | | | 1985 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | |  Hansen, Eric | f | | 2423 | CAN | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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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