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Individual Calculations December 2017 |
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| Surtees, Mike J Total change: 4.00 | |   |
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| Preston Chess Congress | Preston | ENG | 2017-11-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1993 | 2122 | 3.50 | 5 | 0.20 | 20 | 4.00 | |
|  Wareing, John P | | | 1931 | ENG | 1.00 | 1 | 0.25 | 20 | 5.00 | |  Jowett, Peter E | | | 2147 | ENG | 0.50 | 1 | 0.03 | 20 | 0.60 | | | Cukovs, Oleg | | | 1901 | ENG | 1.00 | 1 | 0.22 | 20 | 4.40 | | | Dong, Bao Nghia | | | 2143 | VIE | 0.00 | 1 | -0.47 | 20 | -9.40 | | | Hilton, Tim | | | 1845 | ENG | 1.00 | 1 | 0.17 | 20 | 3.40 | |
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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