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Individual Calculations June 2023 |
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| Betts, Richard Total change: -14.00 | |   |
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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 |
| 1947 | 1752 | 1.00 | 6 | -0.70 | 20 | -14.00 | |
|  Crocker, Philip J | | | 2148 | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Byron, Alan M | | | 2181 | ENG | 0.00 | 1 | -0.07 | 20 | -1.40 | |  Gardiner, Eric D | | | 1830 | ENG | 0.50 | 1 | 0.11 | 20 | 2.20 | | | McMahon, Paul | | | 1898 | ENG | 0.00 | 1 | -0.30 | 20 | -6.00 | | | Regan, Natasha K | | wm | 1981 | ENG | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Cole, Graham | | | 1643 | ENG | 0.50 | 1 | -0.15 | 20 | -3.00 | |
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) | | |
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