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Individual Calculations April 2018 |
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| Gourlay, Martin B Total change: 34.40 | |   |
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| Perth Congress 2018 Over-1750 | Perth | SCO | 2018-02-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1917 | 1852 | 2.50 | 4 | 0.86 | 40 | 34.40 | |
|  Wynarczyk, Raymond | | | 1926 | ENG | 0.00 | 1 | -0.40 | 40 | -16.00 | |  Brookens, Lewis | | | 1887 | SCO | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Giulian, Rosie A | | | 1901 | SCO | 0.50 | 1 | 0.07 | 40 | 2.80 | | | Donohue, Tom | | | 1955 | SCO | 1.00 | 1 | 0.64 | 40 | 25.60 | |
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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