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Individual Calculations January 2010 |
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| Gregg, Alan Total change: -12.15 | |   |
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| 35th Guernsey International Open | Guernsey | GCI | 2009-10-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1974 | 2140 | 3.50 | 6 | -0.81 | 15 | -12.15 | |
|  Goris-Schouwstra, Adry | | | 1952 | NED | 0.50 | 1 | -0.24 | 15 | -3.60 | |  Downey, Keith | | | 1931 | WLS | 0.50 | 1 | -0.27 | 15 | -4.05 | | | Spanton, Timothy | | | 2009 | ENG | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Pickersgill, Adrian | | | 2024 | ENG | 0.50 | 1 | -0.16 | 15 | -2.40 | | | Morcom, Huw | | | 1965 | WLS | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Williams, Peter A | | | 1961 | ENG | 0.50 | 1 | -0.23 | 15 | -3.45 | |
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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