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Individual Calculations December 2021 |
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| Boumphrey, Luke S Total change: 2.20 | |   |
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| 2021 Scarborough Chess Congress | Scarborough | ENG | 2021-10-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1953 | 1926 | 2.00 | 4 | 0.11 | 20 | 2.20 | |
|  Jones, Steven A | | | 2231 | ENG | 0.00 | 1 | -0.14 | 20 | -2.80 | |  Dean, Robert A | | | 1731 | ENG | 1.00 | 1 | 0.25 | 20 | 5.00 | | | Hamer, Martyn | | | 2070 | ENG | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Pal, Rohan | | | 1781 | ENG | 1.00 | 1 | 0.31 | 20 | 6.20 | |
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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