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Individual Calculations June 2023 |
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| Coathup, Roger H Total change: -8.60 | |   |
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| 2022/23 4NCL Division 2 Rounds 9-11 | Milton Keynes | ENG | 2023-04-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2126 | 2087 | 1.00 | 3 | -0.34 | 20 | -6.80 | |
|  Murphy, Hugh W | | | 2100 | ENG | 0.50 | 1 | 0.02 | 20 | 0.40 | |  Carleton, John J | | | 2160 | ENG | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Jones, Christopher M | | | 2117 | ENG | 0.50 | 1 | 0.04 | 20 | 0.80 | |
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) | | | | Durham County Chess Congress - Open | Darlington | ENG | 2023-05-12 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1956 | 2087 | 2.50 | 4 | -0.09 | 20 | -1.80 | |
| | Gara, Kirill | | | 1869 | FID | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Blackford, Ross | | | 1704 | SCO | 0.50 | 1 | -0.41 | 20 | -8.20 | | | Shahbazi, Mahmoud | | | 1989 | ENG | 0.50 | 1 | -0.13 | 20 | -2.60 | | | Neat, Ken P | | | 2262 | ENG | 0.50 | 1 | 0.23 | 20 | 4.60 | |
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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