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Individual Calculations August 2023 |
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| Blackburn, Jonathan L B Total change: 6.60 | |   |
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| 6th Crewe Chess Congress - FIDE Open | Crewe | ENG | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2067 | 2190 | 4.00 | 5 | 0.72 | 20 | 14.40 | |
|  Ansari, Athar | | | 1908 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | |  Potter, John M | | | 1986 | ENG | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Kalaiyalahan, Akshaya | f | | 2148 | ENG | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Jones, Steven A | | | 2175 | ENG | 0.50 | 1 | -0.02 | 20 | -0.40 | | | Shearsby, Jude | | | 2120 | ENG | 1.00 | 1 | 0.40 | 20 | 8.00 | |
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) | | | | 18th South Wales International Open | Bridgend | WLS | 2023-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2009 | 2190 | 6.00 | 9 | -0.39 | 20 | -7.80 | |
| | Maton, Emily | | | 1845 | ENG | 0.50 | 1 | -0.39 | 20 | -7.80 | | | Harris, Calum | | | 1805 | WLS | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Larkin, Benjamin | | | 1850 | ENG | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Roberts, David L | | | 1995 | ENG | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Rudd, Jack | m | | 2276 | ENG | 0.50 | 1 | 0.12 | 20 | 2.40 | | | Nilsson, Joakim | f | | 2176 | SWE | 0.00 | 1 | -0.52 | 20 | -10.40 | | | Marusenko, Petr | m | | 2043 | UKR | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Boswell, Jacob Connor | | | 2163 | ENG | 0.00 | 1 | -0.54 | 20 | -10.80 | | | Fowler, Hugo | | | 1930 | WLS | 1.00 | 1 | 0.18 | 20 | 3.60 | |
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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