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Individual Calculations September 2015 |
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| Horlock, Peter J Total change: 4.60 | |   |
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| 102nd British Chess Championships Under 180 | Coventry | ENG | 2015-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1818 | 1600 | 0.50 | 4 | -0.43 | 20 | -8.60 | |
|  Graham, William M | | | 1916 | ENG | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Newell, David F | | | 1874 | ENG | 0.00 | 1 | -0.17 | 20 | -3.40 | |  Pink, Joshua | | | 1826 | ENG | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Pride, Stephen C | | | 1655 | ENG | 0.50 | 1 | 0.08 | 20 | 1.60 | |
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) | | | | 102nd British Chess Championships Over 50 | Coventry | ENG | 2015-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1995 | 1634 | 1.00 | 5 | 0.48 | 20 | 9.60 | |
| | Gostelow, David W | | | 2034 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Botham, C Paul | | | 1996 | ENG | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Lawson, Maurice E | | | 1961 | ENG | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Collins, Peter M | | | 2002 | ENG | 0.50 | 1 | 0.40 | 20 | 8.00 | | | Calvert, D Ian | | | 1982 | ENG | 0.00 | 1 | -0.11 | 20 | -2.20 | | | * 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) | | | | 102nd British Chess Championships Under 160 | Coventry | ENG | 2015-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1708 | 1634 | 1.00 | 2 | 0.18 | 20 | 3.60 | |
| | Livesey, R Nigel | | | 1831 | ENG | 0.00 | 1 | -0.25 | 20 | -5.00 | | | Franklin, Benjamin James | | | 1584 | ENG | 1.00 | 1 | 0.43 | 20 | 8.60 | |
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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