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Individual Calculations January 2018 |
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| Howes, David J Total change: -28.20 | |   |
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| CCF WINTER CHESS 2017-18 LONG PLAY DECEMBER 2017 | London | ENG | 2017-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1480 | 1482 | 1.00 | 2 | -0.01 | 20 | -0.20 | |
|  Boztas, Lana | | | 1449 | ENG | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Miles, Barry S | | | 1511 | ENG | 0.00 | 1 | -0.46 | 20 | -9.20 | |
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) | | | | CCF CHRISTMAS LONG PLAY CONGRESS - MAJOR | London | ENG | 2017-12-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1369 | 1482 | 0.50 | 3 | -1.40 | 20 | -28.00 | |
| | Vaughan, John | | | 1564 | ENG | 0.00 | 1 | -0.39 | 20 | -7.80 | |  Couchman, Andrew A | | | 1169 | ENG | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Faulkner, Oliver | | | 1373 | ENG | 0.00 | 1 | -0.65 | 20 | -13.00 | |
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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