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Individual Calculations December 2021 |
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| Gray, David Total change: 23.40 | |   |
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| Coulsdon Chess Dicky White S3 NOV 2020 | London | ENG | 2021-11-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1146 | 1077 | 2.50 | 4 | 0.87 | 20 | 17.40 | |
|  Wimble, Garry | | | 1041 | ENG | 0.50 | 1 | -0.05 | 20 | -1.00 | |  Premananthan, Ashmithan | | | 1135 | ENG | 1.00 | 1 | 0.58 | 20 | 11.60 | | | Whelan, Sean | | | 1237 | ENG | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Collins, Michael E | | | 1171 | ENG | 1.00 | 1 | 0.63 | 20 | 12.60 | |
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) | | | | Coulsdon Chess Daytime Chess Autumn 2021 S3 - NOV 2021 | London | ENG | 2021-11-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1356 | 1077 | 1.00 | 4 | 0.30 | 20 | 6.00 | |
| | Gold, Harry | | | 1274 | ENG | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Khan, A Qaiyum | | | 1353 | ENG | 1.00 | 1 | 0.83 | 20 | 16.60 | | | Gillespie, Frank | | | 1321 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Davey, Adrian | | | 1477 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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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