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Individual Calculations January 2020 |
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| Ong, Weng Yan Total change: -50.00 | |   |
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| 11th CSC London Chess Classic: Weekend Under 2050 | London | ENG | 2019-11-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1650 | 1703 | 1.50 | 4 | -0.75 | 40 | -30.00 | |
|  Hortin, Matthew J | | | 1826 | ENG | 0.00 | 1 | -0.33 | 40 | -13.20 | |  Cowan, Xavier | | | 1740 | ENG | 0.50 | 1 | 0.05 | 40 | 2.00 | | | Evans, Ruben | | | 1458 | ENG | 0.50 | 1 | -0.30 | 40 | -12.00 | | | Chiang, Richard | | | 1577 | ENG | 0.50 | 1 | -0.17 | 40 | -6.80 | |
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) | | | | 12th Northwick Park Five Round Congress Open 2019 | London | ENG | 2019-12-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1705 | 1703 | 1.50 | 4 | -0.50 | 40 | -20.00 | |
| | Tombolis, Christopher | | | 1875 | ENG | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Mellor, Jessica | | | 1605 | ENG | 1.00 | 1 | 0.37 | 40 | 14.80 | | | Cox, Toby | | | 1648 | ENG | 0.00 | 1 | -0.58 | 40 | -23.20 | | | Verma, Shlok | | | 1691 | ENG | 0.50 | 1 | -0.02 | 40 | -0.80 | |
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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