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Individual Calculations June 2023 |
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| Parker, Keith Total change: 3.00 | |   |
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| English Seniors Championships 2023 - Over 50 | Leamington Spa | ENG | 2023-05-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1970 | 1827 | 1.50 | 4 | 0.15 | 20 | 3.00 | |
|  Willmoth, Robert F | c | | 2135 | ENG | 0.00 | 1 | -0.14 | 20 | -2.80 | |  Wilson, Matthew R | | | 1747 | ENG | 0.50 | 1 | -0.11 | 20 | -2.20 | | | Miller, George | | | 1849 | ENG | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Crocker, Philip J | | | 2148 | ENG | 0.00 | 1 | -0.13 | 20 | -2.60 | |
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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