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Individual Calculations October 2017 |
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| Selby, Keith Total change: 23.80 | |   |
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| CCF WINTER CHESS 2017-18 SEPTEMBER 2017 | London | ENG | 2017-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1375 | 1327 | 2.50 | 4 | 0.75 | 20 | 15.00 | |
|  Collins, Michael E | | | 1212 | ENG | 1.00 | 1 | 0.34 | 20 | 6.80 | |  Shaikh, Mateen | | | 1391 | ENG | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Shaikh, Mateen | | | 1391 | ENG | 0.00 | 1 | -0.41 | 20 | -8.20 | | | O`neill, Tom C | | | 1505 | SCO | 1.00 | 1 | 0.73 | 20 | 14.60 | |
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) | | | | CCF DAYTIME CHESS 2017-18 SEPTEMBER 2017 | London | ENG | 2017-09-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1297 | 1327 | 1.50 | 2 | 0.44 | 20 | 8.80 | |
| | Vaughan, John | | | 1562 | ENG | 0.50 | 1 | 0.29 | 20 | 5.80 | | | Gray, David | | | 1032 | ENG | 1.00 | 1 | 0.15 | 20 | 3.00 | |
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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