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Individual Calculations February 2018 |
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| Onslow, Alfie Total change: -21.20 | |   |
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| London Junior Chess Championships Under 18, 21 & Christmas Open | London | ENG | 2017-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1875 | 2022 | 3.00 | 5 | -0.36 | 40 | -14.40 | |
|  See, Tristian | | | 1685 | ENG | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Mitra, Roman C | | | 2100 | ENG | 0.00 | 1 | -0.39 | 40 | -15.60 | |  Watson, Jacob | | | 1844 | ENG | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Young, Daniel J | | | 2008 | ENG | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Watson, Mikey J | | | 1737 | ENG | 0.50 | 1 | -0.34 | 40 | -13.60 | |
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) | | | | 2017/18 4NCL Division 3 South Rounds 3-4 | Reading | ENG | 2018-01-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1940 | 2004 | 1.00 | 2 | -0.17 | 40 | -6.80 | |
| | Niccoli, Tony | | | 2020 | ENG | 0.00 | 1 | -0.48 | 40 | -19.20 | | | Sutton, Daniel | | | 1859 | ENG | 1.00 | 1 | 0.31 | 40 | 12.40 | |
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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