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Individual Calculations September 2019 |
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| Graff, Ben Total change: -4.60 | |   |
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| 106th British Championships Under 2050 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1687 | 1885 | 2.50 | 4 | -0.37 | 20 | -7.40 | |
|  Kirby, Andrew | | | 1548 | ENG | 0.50 | 1 | -0.38 | 20 | -7.60 | | | Dewangan, Aayush | | | 1485 * | ENG | 1.00 | 1 | 0.08 | 20 | 1.60 | |  Archer-Lock, Christopher J | | | 2030 | ENG | 0.50 | 1 | 0.19 | 20 | 3.80 | | | Islam, Mohammed | | | 1685 | BAN | 0.50 | 1 | -0.26 | 20 | -5.20 | | | * 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) | | | | 106th British Championships Under 1900 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1722 | 1885 | 3.00 | 4 | 0.14 | 20 | 2.80 | |
| | Taylor, Robert P | | | 1692 | ENG | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Ratnesan, Rajeiv | | | 1678 | ENG | 0.50 | 1 | -0.27 | 20 | -5.40 | | | Ramage, Colin R | | | 1798 | ENG | 0.50 | 1 | -0.12 | 20 | -2.40 | | | Schmerwitz, Reinhard | | | 1721 | GER | 1.00 | 1 | 0.28 | 20 | 5.60 | |
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) | | |
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