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Individual Calculations February 2023 |
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| Calvert, D Ian Total change: 9.00 | |   |
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| Coulsdon Chess Dicky White - December | London | ENG | 2022-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1879 | 1847 | 1.00 | 2 | 0.08 | 20 | 1.60 | |
|  Atako, Chino C | | | 2038 | ENG | 0.50 | 1 | 0.25 | 20 | 5.00 | | | Odunaiya, Victor | | | 1719 | ENG | 0.50 | 1 | -0.17 | 20 | -3.40 | |
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 3-4 | Daventry | ENG | 2023-01-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2003 | 1850 | 1.00 | 2 | 0.37 | 20 | 7.40 | |
| | Talsma, Paul | | | 2145 | NED | 0.50 | 1 | 0.35 | 20 | 7.00 | |  Tart, Peter K | | | 1861 | ENG | 0.50 | 1 | 0.02 | 20 | 0.40 | |
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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