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Individual Calculations February 2020 |
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| Ball, Katie C Total change: -95.60 | |   |
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| London Junior Chess Championships U16 2019 | London | ENG | 2019-12-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1436 | 1459 | 1.00 | 4 | -1.17 | 40 | -46.80 | |
|  Covey, Jason | | | 1770 | ENG | 0.00 | 1 | -0.14 | 40 | -5.60 | |  Di Conno, Filippo | | | 1252 | ENG | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Willoughby, Christopher | | | 1423 | ENG | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Hamilton, Melissa | | | 1298 | ENG | 0.00 | 1 | -0.71 | 40 | -28.40 | |
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) | | | | 78th Hampstead FIDE Chess Congresses U1900 Jan 2020 | London | ENG | 2020-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1499 | 1419 | 0.00 | 3 | -1.22 | 40 | -48.80 | |
| | Kender, Robert | | | 1731 | USA | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Pepe, Salvatore | | | 1592 | ENG | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Oh, Julie | | | 1173 | ENG | 0.00 | 1 | -0.81 | 40 | -32.40 | |
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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