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Individual Calculations October 2022 |
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| Gray, David Total change: -5.20 | |   |
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| Coulsdon Chess Dicky White - September | London | ENG | 2022-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1131 | 1053 | 0.00 | 1 | -0.39 | 20 | -7.80 | |
|  Rizvi, Zara | | | 1131 | ENG | 0.00 | 1 | -0.39 | 20 | -7.80 | |
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) | | | | Coulsdon Chess Daytime Chess Autumn 2022 September 2022 | Coulsdon | ENG | 2022-09-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1218 | 1053 | 1.00 | 3 | 0.13 | 20 | 2.60 | |
| | Merrifield, Peter | | | 1087 | WLS | 1.00 | 1 | 0.55 | 20 | 11.00 | |  Woolley, Michael P | | | 1234 | ENG | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Gillespie, Frank | | | 1332 | ENG | 0.00 | 1 | -0.16 | 20 | -3.20 | |
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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