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Individual Calculations September 2015 |
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| Snook-Lumb, Chris Total change: 61.60 | |   |
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| 102nd British Chess Championships Week 1 PM Open | Coventry | ENG | 2015-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1898 | 1664 | 3.00 | 5 | 1.92 | 20 | 38.40 | |
|  Collins, Jonathan | | | 1896 | ENG | 1.00 | 1 | 0.79 | 20 | 15.80 | |  Long, Matthew | | | 2064 * | WLS | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Riding, Mick D | | | 1881 | ENG | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Golding, James | | | 1811 | ENG | 1.00 | 1 | 0.70 | 20 | 14.00 | | | Anilkumar, Anantha P | | | 1838 | ENG | 0.50 | 1 | 0.23 | 20 | 4.60 | | | * 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) | | | | 102nd British Chess Championships Weekend Open | Coventry | ENG | 2015-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2026 | 1664 | 1.00 | 3 | 0.69 | 20 | 13.80 | |
| | Forman, Karl L | | | 2021 | ENG | 1.00 | 1 | 0.89 | 20 | 17.80 | | | Moore, Graham J | | | 2064 * | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Wells, Jonathan C | | | 1994 | ENG | 0.00 | 1 | -0.12 | 20 | -2.40 | | | * 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 Week 2 AM Open | Coventry | ENG | 2015-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2000 | 1664 | 1.00 | 3 | 0.63 | 20 | 12.60 | |
| | De Coverly, Roger D | | | 1992 | ENG | 1.00 | 1 | 0.87 | 20 | 17.40 | | | Regan, Natasha K | | wm | 2062 | ENG | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Bryant, Richard B E | | | 1947 | ENG | 0.00 | 1 | -0.16 | 20 | -3.20 | |
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 Week 2 PM Open | Coventry | ENG | 2015-08-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1764 | 1664 | 1.00 | 3 | -0.16 | 20 | -3.20 | |
| | Ramage, Colin R | | | 1908 | ENG | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Maber, Martyn J | | | 1358 | ENG | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Coles, Steven F | | | 2026 | ENG | 0.00 | 1 | -0.10 | 20 | -2.00 | |
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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