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Individual Calculations August 2023 |
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| Obi, Okwose Marc Total change: 46.00 | |   |
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| 6th Crewe Chess Congress - FIDE Open | Crewe | ENG | 2023-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 1733 | 2.00 | 4 | 1.32 | 20 | 26.40 | |
|  Chan, Sheng Liang Bernard | | | 2086 | MAS | 0.50 | 1 | 0.39 | 20 | 7.80 | |  Shearsby, Jude | | | 2120 | ENG | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Zhu, Yaoyao | | | 1942 | ENG | 0.50 | 1 | 0.27 | 20 | 5.40 | | | Fajfer, Bartosz | | | 1929 | POL | 1.00 | 1 | 0.75 | 20 | 15.00 | |
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) | | | | Kent FIDE Congress 2023 - U2350 | Tunbridge Wells | ENG | 2023-07-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1891 | 1749 | 0.00 | 3 | -1.04 | 20 | -20.80 | |
| | Brewer, Callum D | | | 2132 | ENG | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Potter, John M | | | 1986 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Pereslavtsev, Alexandr | | | 1555 | ENG | 0.00 | 1 | -0.75 | 20 | -15.00 | |
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) | | | | 2023 British Championship: Weekender - Atkins | Leicester | ENG | 2023-07-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2006 | 1749 | 3.00 | 5 | 2.02 | 20 | 40.40 | |
| | Pert, Max P | | | 1937 | ENG | 1.00 | 1 | 0.74 | 20 | 14.80 | | | Gant, Chris J | f | | 2058 | ENG | 0.50 | 1 | 0.36 | 20 | 7.20 | | | Chopra, Manmay | | | 1987 | IND | 0.50 | 1 | 0.30 | 20 | 6.00 | | | Sutton, Daniel | | | 1910 | ENG | 1.00 | 1 | 0.71 | 20 | 14.20 | | | Matlak, Oleksandr | | | 2136 | UKR | 0.00 | 1 | -0.09 | 20 | -1.80 | |
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) | | |
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