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Individual Calculations September 2023 |
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| Scowen, Roger S Total change: -18.00 | |   |
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| 2023 British Championship: Over 65 Championship | Leicester | ENG | 2023-07-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1831 | 0.50 | 3 | -0.90 | 20 | -18.00 | |
|  Surtees, Mike J | | | 2059 | ENG | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Tidmarsh, David A | | | 1761 | ENG | 0.00 | 1 | -0.60 | 20 | -12.00 | | | Graham, Neil | | | 1764 | ENG | 0.50 | 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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