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Individual Calculations January 2019 |
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| Lund, D Brett Total change: 9.40 | |   |
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| Preston Chess Congress 2018 | Preston | ENG | 2018-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2064 | 2229 | 4.00 | 5 | 0.47 | 20 | 9.40 | |
|  Doran, Chris | | | 1959 | ENG | 0.50 | 1 | -0.33 | 20 | -6.60 | |  Giles, Yasmin | | | 1942 | ENG | 1.00 | 1 | 0.16 | 20 | 3.20 | | | Surtees, Mike J | | | 2096 | ENG | 1.00 | 1 | 0.32 | 20 | 6.40 | | | Sumit, Kumar | | | 2183 | IND | 0.50 | 1 | -0.06 | 20 | -1.20 | | | Jowett, Peter E | | | 2141 | ENG | 1.00 | 1 | 0.38 | 20 | 7.60 | |
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) | | |
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