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Individual Calculations September 2018 |
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| Weersing, Abigail Riis Total change: 36.40 | |   |
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| 105th British Championships Under 1900 | Hull | ENG | 2018-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1812 | 1608 | 1.50 | 3 | 0.79 | 40 | 31.60 | |
|  Jazdzewski, Daniel | | | 1800 | POL | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Stern, Robert | | | 1807 | ENG | 0.50 | 1 | 0.26 | 40 | 10.40 | |  Connolly, Marcus Pa | | | 1830 | ENG | 0.50 | 1 | 0.28 | 40 | 11.20 | |
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) | | | | 2018 Midland Open Championship Major | Telford | ENG | 2018-08-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1433 | 1613 | 0.00 | 1 | -0.74 | 40 | -29.60 | |
| | Dharmasena, Gavith | | | 1433 | ENG | 0.00 | 1 | -0.74 | 40 | -29.60 | |
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) | | | | Gibraltar Junior Chess Festival 2018 U12 | Gibraltar | ENG | 2018-08-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1596 | 1613 | 3.50 | 5 | 0.86 | 40 | 34.40 | |
| | Valdivia Khudiakova, Yulia | | | 1356 | ESP | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Trost, Edvin | | | 2013 * | SWE | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Shigaev, Arthur | | | 1273 | ESP | 1.00 | 1 | 0.12 | 40 | 4.80 | | | Mellor, Jessica | | | 1536 | ENG | 1.00 | 1 | 0.39 | 40 | 15.60 | | | Diaz Mino, Daniel | | | 1803 | ESP | 0.50 | 1 | 0.25 | 40 | 10.00 | | | * 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) | | |
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