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Individual Calculations September 2009 |
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| Thomas, James Total change: 1.85 | |   |
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| South Wales International Open | Pontypridd | WLS | 2009-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1972 | 1868 | 4.00 | 8 | 0.98 | 25 | 24.50 | |
|  Gosling, Brian G E | | | 2010 | ENG | 1.00 | 1 | 0.69 | 25 | 17.25 | |  Miezis, Normunds | g | | 2268 * | LAT | 0.00 | 1 | -0.08 | 25 | -2.00 | | | Tew, Paul | | | 2056 | WLS | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Jones, Jeremy | | | 1617 | WLS | 1.00 | 1 | 0.19 | 25 | 4.75 | | | Owens, Megan R | | | 1731 | WLS | 1.00 | 1 | 0.32 | 25 | 8.00 | | | Fathallah, Joe | | | 1943 | WLS | 0.50 | 1 | 0.10 | 25 | 2.50 | | | Jackson, Oliver A | | | 2159 | ENG | 0.00 | 1 | -0.15 | 25 | -3.75 | | | Gibson, Christopher A | | | 1991 | ENG | 0.50 | 1 | 0.17 | 25 | 4.25 | | | * 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) | | | | Glorney Cup | Glasgow | SCO | 2009-07-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2029 | 1868 | 0.50 | 4 | -0.66 | 25 | -16.50 | |
| | Osborne, Sam | | | 2021 | IRL | 0.00 | 1 | -0.30 | 25 | -7.50 | | | Rocks, Daniel | | | 2037 | SCO | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Osborne, Sam | | | 2021 | IRL | 0.00 | 1 | -0.30 | 25 | -7.50 | | | Rocks, Daniel | | | 2037 | SCO | 0.50 | 1 | 0.22 | 25 | 5.50 | |
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) | | | NOTE: K factor changed | | 16th Styrian Youth Champ. | Mureck | AUT | 2009-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1889 | 1868 | 1.00 | 3 | -0.41 | 15 | -6.15 | |
| | Ivekovic, Bozidar | | | 1954 | CRO | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Tausanov, Mihail | | | 1914 | MKD | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Mravic, Filip | | | 1800 | CRO | 0.50 | 1 | -0.09 | 15 | -1.35 | |
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) | | |
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