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Individual Calculations January 2019 |
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| Piecha, Lukasz Marek Total change: -2.00 | |   |
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| 10th CSC London Chess Classic: 5-Day Under 1750 | London | ENG | 2018-12-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1555 | 1729 | 2.00 | 4 | -0.91 | 40 | -36.40 | |
|  Kirkland, Arnold G | | | 1482 | ENG | 0.50 | 1 | -0.31 | 40 | -12.40 | |  Gunn, Michael J | | | 1577 | ENG | 0.50 | 1 | -0.20 | 40 | -8.00 | | | Gribben, Chris | | | 1561 | NZL | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Dyte, Alistair P | | | 1599 | ENG | 0.00 | 1 | -0.68 | 40 | -27.20 | |
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) | | | | 10th CSC London Chess Classic: Weekend Under 1825 | London | ENG | 2018-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1636 | 1729 | 4.00 | 5 | 0.86 | 40 | 34.40 | |
| | Ofstad, Johannes | | | 1585 | NOR | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Bergner, Matthias | | | 1650 | GER | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Ramaiya, Arushi | | | 1667 | ENG | 0.00 | 1 | -0.59 | 40 | -23.60 | | | Frith, Shane S | | | 1620 | ENG | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Lim, Yu-Chin (peter) | | | 1659 | ENG | 1.00 | 1 | 0.40 | 40 | 16.00 | |
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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