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Individual Calculations September 2019 |
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| Hirst, Joe Total change: 20.80 | |   |
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| 106th British Championships Under 2050 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1736 | 1632 | 2.00 | 5 | 0.14 | 40 | 5.60 | |
|  Fryer, David W | | | 1926 | ENG | 0.00 | 1 | -0.15 | 40 | -6.00 | |  Jones, Neil T | | | 1827 | ENG | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Faldon, David J | | | 1904 | ENG | 0.00 | 1 | -0.17 | 40 | -6.80 | | | Kumar, Sanjit S | | | 1362 | ENG | 1.00 | 1 | 0.17 | 40 | 6.80 | | | Milewska, Agnieszka | | | 1660 | ENG | 0.50 | 1 | 0.04 | 40 | 1.60 | |
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) | | | | 106th British Championships Under 1900 | Torquay | ENG | 2019-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1694 | 1632 | 1.50 | 5 | -0.60 | 40 | -24.00 | |
| | Brooks, Paul | | | 1818 | ENG | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Jacob, Sydney J | | | 1797 | ENG | 0.00 | 1 | -0.28 | 40 | -11.20 | | | Foster, Paul | | | 1581 | ENG | 1.00 | 1 | 0.43 | 40 | 17.20 | | | McCarthy, Damian | | | 1857 | ENG | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Zhu, Feng | | | 1417 | ENG | 0.50 | 1 | -0.27 | 40 | -10.80 | |
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) | | | | Gibraltar Junior International Chess Festival Under 16 | Gibraltar | ENG | 2019-08-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1711 | 1639 | 3.50 | 6 | 0.98 | 40 | 39.20 | |
| | Cesar Maestre, Bernardo | | | 2039 * | ESP | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Popham, Sarah | | | 1372 | ENG | 1.00 | 1 | 0.18 | 40 | 7.20 | | | Tombolis, Christopher | | | 1874 | ENG | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Lv, Jason | | | 1532 | ENG | 1.00 | 1 | 0.35 | 40 | 14.00 | | | Hernandez Tellez, Claudia | | | 1711 | ESP | 1.00 | 1 | 0.60 | 40 | 24.00 | | | Onslow, Teddy | | | 1739 | ENG | 0.50 | 1 | 0.14 | 40 | 5.60 | | | * 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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