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Individual Calculations September 2023 |
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| Jackson, Edward Total change: 223.60 | |   |
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| 2023 British Championship | Leicester | ENG | 2023-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2233 | 1942 | 5.00 | 9 | 3.51 | 40 | 140.40 | |
|  Toma, Katarzyna | | wg | 2259 | ENG | 0.50 | 1 | 0.37 | 40 | 14.80 | |  Claridge-Hansen, William | f | | 2332 | ENG | 0.50 | 1 | 0.41 | 40 | 16.40 | | | Turner, Max N | c | | 2252 | ENG | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Khoury, Theo | | | 2066 | ENG | 1.00 | 1 | 0.67 | 40 | 26.80 | | | Boswell, Jacob Connor | | | 2163 | ENG | 0.00 | 1 | -0.22 | 40 | -8.80 | | | Ogunshola, Ben | | | 2116 | NGR | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Merriman, John | f | | 2274 | ENG | 1.00 | 1 | 0.88 | 40 | 35.20 | | | Bates, Richard A | m | | 2324 | ENG | 0.50 | 1 | 0.41 | 40 | 16.40 | | | Ashton, Adam G | f | | 2314 | ENG | 0.50 | 1 | 0.40 | 40 | 16.00 | |
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) | | | | Manchester Summer Chess Congress August 2023 | Bolton | ENG | 2023-08-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2011 | 1942 | 4.00 | 5 | 1.98 | 40 | 79.20 | |
| | Llewellyn, Alan M | | | 1542 * | WLS | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Lambert, Adrien | | | 2114 | FRA | 1.00 | 1 | 0.73 | 40 | 29.20 | | | Surtees, Mike J | | | 2059 | ENG | 0.50 | 1 | 0.16 | 40 | 6.40 | | | Ashton, Adam G | f | | 2314 | ENG | 0.50 | 1 | 0.40 | 40 | 16.00 | | | Paterson, Andrew I | | | 2024 | ENG | 1.00 | 1 | 0.61 | 40 | 24.40 | | | * 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) | | | | 15th Leyland Congress | Leyland | ENG | 2023-08-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1842 | 1942 | 2.00 | 3 | 0.10 | 40 | 4.00 | |
| | Wareing, John P | | | 1861 | ENG | 0.00 | 1 | -0.61 | 40 | -24.40 | | | Potter, Steven | | | 1753 | ENG | 1.00 | 1 | 0.25 | 40 | 10.00 | | | Doran, Chris | | | 1913 | ENG | 1.00 | 1 | 0.46 | 40 | 18.40 | |
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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