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Individual Calculations January 2009 |
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| Gravett, Alan Total change: -13.80 | |   |
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| 34th Guernsey International Open | Guernsey | GCI | 2008-10-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2025 | 1948 | 1.50 | 6 | -0.92 | 15 | -13.80 | |
|  Jackson, Oliver | | | 2182 | ENG | 0.00 | 1 | -0.21 | 15 | -3.15 | |  Cornelisse, John | | | 2203 | NED | 0.00 | 1 | -0.19 | 15 | -2.85 | | | Brookfield, Toby | c | | 1763 | GCI | 0.50 | 1 | -0.24 | 15 | -3.60 | | | Ippel, Cornelius | | | 2065 | NED | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Burton, Ronnie | | | 2052 | ENG | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Downey, Keith | | | 1887 | WLS | 0.00 | 1 | -0.58 | 15 | -8.70 | |
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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