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Individual Calculations September 2018 |
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| Couchman, Andrew Total change: 25.20 | |   |
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| 105th British Championships Over 50 | Hull | ENG | 2018-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1530 | 1130 | 0.00 | 5 | -0.40 | 20 | -8.00 | |
|  Brown, Alan M | | | 1530 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Robson, Paul E | | | 1530 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Clancy, Martin J | | | 1530 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | McMahon, Paul | | | 1530 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Allison, Paul A | | | 1530 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | Jessie Gilbert 2018 Elite Swiss Events 1400 | London | ENG | 2018-08-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1162 | 1116 | 3.00 | 4 | 1.23 | 20 | 24.60 | |
| | Gold, Harry | | | 1317 | ENG | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Wimble, Garry | | | 1060 | ENG | 1.00 | 1 | 0.42 | 20 | 8.40 | | | Gray, David | | | 1090 | ENG | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Braithwaite, Paul | | | 1180 | ENG | 1.00 | 1 | 0.59 | 20 | 11.80 | |
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) | | | | Jessie Gilbert 2018 Sections for All | London | ENG | 2018-08-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1250 | 1116 | 1.50 | 3 | 0.43 | 20 | 8.60 | |
| | Fernando, Manel | | | 1509 | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Braithwaite, Paul | | | 1180 | ENG | 0.50 | 1 | 0.09 | 20 | 1.80 | | | Wimble, Garry | | | 1060 | ENG | 1.00 | 1 | 0.42 | 20 | 8.40 | |
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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