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Individual Calculations December 2023 |
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| Potter, John M Total change: 6.20 | |   |
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| 46th Scarborough Congress | Scarborough | ENG | 2023-10-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1900 | 1984 | 2.50 | 4 | 0.06 | 20 | 1.20 | |
|  De Sousa Muachikape, Jael | | | 1782 | ENG | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Garnett, John S | | | 1805 | ENG | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Jackson, Edward | | | 2166 | ENG | 0.00 | 1 | -0.26 | 20 | -5.20 | |  Larchikov, Maksym | | | 1845 | UKR | 0.50 | 1 | -0.19 | 20 | -3.80 | |
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) | | | | 2023 Birmingham Open | Birmingham | ENG | 2023-11-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1767 | 1984 | 4.00 | 5 | 0.25 | 20 | 5.00 | |
| | Flynn, David | | | 1824 | ENG | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Patel, Keatan | | | 1700 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Fernandez Santos, Nicolas | | | 1584 * | ESP | 1.00 | 1 | 0.08 | 20 | 1.60 | | | James, Russell A | | | 2018 | ENG | 0.50 | 1 | 0.05 | 20 | 1.00 | | | Rida, Ruqayyah | | | 1708 | ENG | 0.50 | 1 | -0.33 | 20 | -6.60 | | | * 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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