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Individual Calculations September 2009 |
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| Jackson, Oliver A Total change: 40.35 | |   |
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| South Wales International Open | Pontypridd | WLS | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2177 | 2159 | 5.00 | 9 | 0.66 | 15 | 9.90 | |
|  Miezis, Normunds | g | | 2559 * | LAT | 0.50 | 1 | 0.42 | 15 | 6.30 | |  Jain, Radha | | | 1788 | ENG | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Fathallah, Joe | | | 1943 | WLS | 0.50 | 1 | -0.28 | 15 | -4.20 | | | Adebajo, Olufemi | | | 2002 | ENG | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Zhou, Yang-Fan | | | 2265 | ENG | 0.50 | 1 | 0.14 | 15 | 2.10 | | | Marusenko, Petr | m | | 2323 | UKR | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Rudd, Jack | m | | 2327 | ENG | 0.00 | 1 | -0.28 | 15 | -4.20 | | | Thomas, James | | | 1868 | WLS | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Arkell, Keith C | g | | 2521 | ENG | 0.00 | 1 | -0.10 | 15 | -1.50 | | | * 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) | | | | British Championships-Major Open | Torquay | ENG | 2009-07-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2043 | 2159 | 8.50 | 10 | 2.03 | 15 | 30.45 | |
| | Andreev, Peter | | | 1901 | ENG | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Stables, Gordon | | | 1982 | ENG | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Webb, Matthew D | | | 1954 | ENG | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Nelson, Omowale | | | 2075 | JAM | 1.00 | 1 | 0.38 | 15 | 5.70 | | | Ali, Mohammad Imran | | | 2148 | BAN | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Eames, Robert S | f | | 2286 | ENG | 0.50 | 1 | 0.17 | 15 | 2.55 | | | Ledger, Dave J | f | | 2225 | ENG | 1.00 | 1 | 0.59 | 15 | 8.85 | | | Macqueen, Calum | | | 1999 | SCO | 0.50 | 1 | -0.21 | 15 | -3.15 | | | Cumming, Rhys | | | 1895 | ENG | 1.00 | 1 | 0.18 | 15 | 2.70 | | | Iyengar, Ilya | | | 1963 | ENG | 1.00 | 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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