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Individual Calculations February 2019 |
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| Zhao, Jeffrey Renfei Total change: -38.00 | |   |
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| 2019 Ontario Junior Chess Championship | Mississauga | CAN | 2019-01-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1799 | 1868 | 2.00 | 4 | -0.36 | 40 | -14.40 | |
|  Ning, Alwin | | | 1468 * | CAN | 1.00 | 1 | 0.08 | 40 | 3.20 | |  Ahmed Syed, Ibrahim | | | 1640 | CAN | 0.50 | 1 | -0.29 | 40 | -11.60 | | | Rusonik, Max | | | 1820 | CAN | 0.50 | 1 | -0.07 | 40 | -2.80 | | | Hua, Eugene | f | | 2268 * | CAN | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | | | 2019 Oakville Winter Open U2100 | Oakville | CAN | 2019-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1748 | 1868 | 2.00 | 4 | -0.59 | 40 | -23.60 | |
| | Zhao, Jeffrey R. | | | 1877 | CAN | 0.00 | 1 | -0.49 | 40 | -19.60 | | | Liu, Harrison (hangchen) | | | 1574 | CAN | 0.50 | 1 | -0.35 | 40 | -14.00 | | | Brajkovic, Nikola | | | 1851 | CAN | 1.00 | 1 | 0.48 | 40 | 19.20 | | | Chakkoli, Shiva | | | 1691 | CAN | 0.50 | 1 | -0.23 | 40 | -9.20 | |
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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