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Individual Calculations January 2018 |
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| Armstrong, Robert J. Total change: -8.20 | |   |
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| 2017 Hart House Holidays Open U1900 | Toronto | CAN | 2017-12-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1589 | 1553 | 0.50 | 2 | -0.41 | 20 | -8.20 | |
|  Gao, Raymond | | | 1474 | CAN | 0.50 | 1 | -0.11 | 20 | -2.20 | |  Singh, Malhar | | | 1703 | CAN | 0.00 | 1 | -0.30 | 20 | -6.00 | |
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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