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Individual Calculations September 2011 |
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| Kalaydina, Regina-Veronicka Total change: 25.80 | |   |
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| 2011 Calgary Open | Calgary, Alberta | CAN | 2011-05-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2041 | 1842 | 0.00 | 1 | -0.24 | 15 | -3.60 | |
|  Rekhson, Vladislav | | | 2041 | CAN | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | 2011 North American Youth Championship - U16 Open | Tarrytown, New York | USA | 2011-06-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 1842 | 0.00 | 2 | -0.37 | 15 | -5.55 | |
| | Qin, Ziyi | | | 2159 | CAN | 0.00 | 1 | -0.13 | 15 | -1.95 | |  Hughes, John | | | 2048 | USA | 0.00 | 1 | -0.24 | 15 | -3.60 | |
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) | | | | 2011 CAN Youth Ch Girls | Richmond Hill, Ontario | CAN | 2011-07-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1943 | 1842 | 1.50 | 2 | 0.78 | 15 | 11.70 | |
| | Roy, Myriam | | | 1935 | CAN | 0.50 | 1 | 0.13 | 15 | 1.95 | | | Botez, Alexandra | | wc | 1950 | CAN | 1.00 | 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) | | | | 48th Canadian Open Chess Championship 2011 | Toronto, Ontario | CAN | 2011-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 1842 | 2.50 | 6 | 0.74 | 15 | 11.10 | |
| | Drkulec, Vladimir | | | 2002 | CAN | 1.00 | 1 | 0.71 | 15 | 10.65 | | | Puri, Vinny | f | | 2242 * | CAN | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Wu, Kevin | | | 1914 | CAN | 0.00 | 1 | -0.40 | 15 | -6.00 | | | Kagramanov, Dalia | | | 1862 | CAN | 0.00 | 1 | -0.47 | 15 | -7.05 | | | Cohen, Lawrence S | | | 2001 | USA | 0.50 | 1 | 0.21 | 15 | 3.15 | | | Purewal, Sardul | | | 2056 | CAN | 1.00 | 1 | 0.77 | 15 | 11.55 | | | * 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) | | | | 6th Edmonton International Reserves | Edmonton, Alberta | CAN | 2011-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 1842 | 1.50 | 2 | 0.81 | 15 | 12.15 | |
| | Sequillion, Aaron | | | 1995 | CAN | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Bentley, Bill | | | 1923 | CAN | 1.00 | 1 | 0.61 | 15 | 9.15 | |
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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