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Individual Calculations September 2019 |
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| Collins, Jacob Total change: 31.20 | |   |
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| 2019 Calgary Bobby Fischer Memorial | Calgary | CAN | 2019-07-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1777 | 1678 | 2.00 | 3 | 0.78 | 40 | 31.20 | |
|  Haessel, Dale | f | | 2078 * | CAN | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Ali, Husain | | | 1739 | CAN | 1.00 | 1 | 0.58 | 40 | 23.20 | | | Bruna, Jose | | | 1515 | CAN | 1.00 | 1 | 0.28 | 40 | 11.20 | | | * 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) | | | NOTE: K factor changed | | 12th Calgary International Open | Calgary | CAN | 2019-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1783 | 1678 | 1.50 | 4 | 0.00 | 20 | 0.00 | |
| | Raninga, Aditya | | | 1862 | CAN | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Chen, Andrew | | | 1796 | CAN | 0.50 | 1 | 0.16 | 20 | 3.20 | | | Chen, Helen | | | 1447 | CAN | 1.00 | 1 | 0.21 | 20 | 4.20 | | | Ebrahim-Shirazi, Behrooz | | | 2025 | CAN | 0.00 | 1 | -0.11 | 20 | -2.20 | |
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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