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Individual Calculations July 2009 |
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| Williams, Peter A Jnr Total change: 55.65 | |   |
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| Coulsdon Winter Premiership | Coulsdon | ENG | 2008-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2138 | 1867 | 4.00 | 9 | 2.35 | 15 | 35.25 | |
|  Prizant, Michael | | | 2147 | ENG | 0.50 | 1 | 0.34 | 15 | 5.10 | |  Edwards, Nicholas L | | | 2013 | ENG | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Osborne, Marcus E | | | 2217 | ENG | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Lock, Gavin R | | | 2217 | ENG | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Zhou, Yang-Fan | | | 2217 | ENG | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Darville, Matt | | | 1952 | ENG | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Snape, Ian L | | | 2204 | ENG | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Bailey, Kevin J | | | 2061 | ENG | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Rawlinson, Aidan M | | | 2217 | ENG | 1.00 | 1 | 0.89 | 15 | 13.35 | |
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) | | | | Surrey Open | Sutton | ENG | 2009-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2013 | 1905 | 3.50 | 6 | 1.36 | 15 | 20.40 | |
| | Rocks, Daniel | | | 2056 | SCO | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Shepley, Julien M | | | 2069 | ENG | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Hart, David P O | | | 2029 | ENG | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Lunn, Matthew | | | 1912 | ENG | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Millward, Kevin P | | | 1910 | ENG | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Fernandez-Espana, Marco | | | 2100 | ESP | 0.00 | 1 | -0.25 | 15 | -3.75 | |
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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