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Individual Calculations September 2011 |
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| Pitre, H G Total change: -23.85 | |   |
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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 |
| 1905 | 1974 | 1.00 | 4 | -1.35 | 15 | -20.25 | |
|  Abrahams, Daniel | | | 2003 | CAN | 0.00 | 1 | -0.46 | 15 | -6.90 | |  Willis, Bradley J | | | 2019 | CAN | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Pieri, Enzo | | | 1734 | ITA | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Kagramanov, Dalia | | | 1862 | CAN | 0.00 | 1 | -0.65 | 15 | -9.75 | |
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) | | | | Portland Chess Club Centennial Open | Portland, Oregon | USA | 2011-08-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2087 | 1974 | 1.50 | 5 | -0.24 | 15 | -3.60 | |
| | Gay, Daniel Zachary | | | 2087 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Morris, Michael J | | | 2100 | USA | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Aiello, Roberto | | | 1992 | USA | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Williams, John M | | | 2106 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Golub, David | | | 2152 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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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