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Individual Calculations April 2023 |
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| Calvert, D Ian Total change: 15.00 | |   |
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| Coulsdon Chess Dicky White - March | London | ENG | 2023-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1918 | 1859 | 0.50 | 1 | 0.08 | 20 | 1.60 | |
|  Smith, Mark | | | 1918 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | |
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) | | | | 2022/23 4NCL Division 3 East Rounds 7-8 | Daventry | ENG | 2023-03-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1912 | 1853 | 1.50 | 2 | 0.67 | 20 | 13.40 | |
| | McMahon, Paul | | | 1900 | ENG | 1.00 | 1 | 0.57 | 20 | 11.40 | |  Borrowdale, Graham E | | | 1924 | ENG | 0.50 | 1 | 0.10 | 20 | 2.00 | |
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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