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Individual Calculations February 2020 |
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| Waterfield, Mark Total change: -28.40 | |   |
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| 24th 4NCL Congress Major | Harrogate | ENG | 2020-01-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1740 | 1688 | 1.00 | 4 | -0.73 | 40 | -29.20 | |
|  Bagley, Andy | | | 1833 | ENG | 0.00 | 1 | -0.31 | 40 | -12.40 | |  Jayawarna, Tarini | | | 1564 | ENG | 1.00 | 1 | 0.33 | 40 | 13.20 | | | Barber, Andrew | | | 1822 | ENG | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Millar, Greg F | | | 1741 | ENG | 0.00 | 1 | -0.43 | 40 | -17.20 | |
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) | | | | Gibraltar International Chess Festival 2020 Amateurs B | Gibraltar | ENG | 2020-01-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1668 | 1688 | 2.00 | 4 | 0.02 | 40 | 0.80 | |
| | Johansson, Daniel 1984 | | | 1799 | SWE | 0.00 | 1 | -0.35 | 40 | -14.00 | | | Russell, Logan | | | 1288 * | ENG | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Kovacevic, Aleksandar S | | | 1804 | SRB | 1.00 | 1 | 0.66 | 40 | 26.40 | | | Dragic, Dragan | | | 1781 | SRB | 0.00 | 1 | -0.37 | 40 | -14.80 | | | * 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) | | |
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