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Individual Calculations July 2010 |
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| Williams, Peter A Jnr Total change: 60.30 | |   |
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| Coulsdon Premiership | Coulsdon | ENG | 2009-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2095 | 1961 | 5.50 | 9 | 2.51 | 15 | 37.65 | |
|  Edwards, Nicholas L | | | 1998 | ENG | 1.00 | 1 | 0.55 | 15 | 8.25 | |  Sagyaman, Francis William | | | 1937 | PHI | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Lock, Gavin | | | 2188 | ENG | 0.50 | 1 | 0.29 | 15 | 4.35 | | | Osborne, Marcus | | | 2218 | CRO | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Maguire, Robert | | | 1825 | ENG | 0.00 | 1 | -0.68 | 15 | -10.20 | | | Rizvi, Nasir | | | 2156 | WLS | 0.50 | 1 | 0.25 | 15 | 3.75 | | | Bailey, Kevin | | | 2083 | ENG | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Snape, Ian | | | 2189 | ENG | 1.00 | 1 | 0.79 | 15 | 11.85 | | | Kilpatrick, Callum | | | 2260 | ENG | 0.50 | 1 | 0.35 | 15 | 5.25 | |
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) | | | | Coulsdon Super League | Coulsdon | ENG | 2009-10-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 1961 | 3.00 | 5 | 1.01 | 15 | 15.15 | |
| | Foster, James C | | | 1976 | ENG | 0.50 | 1 | 0.02 | 15 | 0.30 | | | Meyer, Gordon | | | 2165 | RSA | 0.50 | 1 | 0.26 | 15 | 3.90 | | | Ackley, Peter | | | 2095 | ENG | 0.50 | 1 | 0.18 | 15 | 2.70 | | | Jones, Victor G L | | | 2062 | ENG | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Edwards, Nicholas L | | | 1895 | ENG | 1.00 | 1 | 0.41 | 15 | 6.15 | |
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) | | | | Four Nations Chess League (4NCL) | Various | ENG | 2009-10-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2243 | 1961 | 1.00 | 3 | 0.50 | 15 | 7.50 | |
| | Adams, David M | | | 2217 | ENG | 0.50 | 1 | 0.31 | 15 | 4.65 | | | Wall, Gavin | m | | 2296 | IRL | 0.00 | 1 | -0.12 | 15 | -1.80 | | | McFarland, Robert S | | | 2215 | ENG | 0.50 | 1 | 0.31 | 15 | 4.65 | |
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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