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Individual Calculations November 2023 |
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| Gravett, Alan D Total change: 17.40 | |   |
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| 47th Guernsey International Chess Festival - Open Tournament | St. Peter Port | GCI | 2023-10-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1988 | 1810 | 2.50 | 6 | 0.87 | 20 | 17.40 | |
|  Thurlow, Kevin J | c | | 2020 | ENG | 0.00 | 1 | -0.23 | 20 | -4.60 | |  Dilleigh, Stephen P | | | 2031 | ENG | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Punnett, Alan K | | | 2071 | ENG | 0.00 | 1 | -0.18 | 20 | -3.60 | | | Dijksterhuis, Rolf | | | 1872 | NED | 1.00 | 1 | 0.59 | 20 | 11.80 | | | Kraft, Karl-Heinz, Prof. Dr. | | | 1993 | GER | 0.50 | 1 | 0.24 | 20 | 4.80 | | | Rowe, Peter | c | | 1938 | GCI | 0.50 | 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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