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Individual Calculations November 2009 |
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| Said, Oliver Total change: 63.00 | |   |
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| 2nd Sunday Open 2009 | Sliema | MLT | 2009-02-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1931 | 1821 | 2.00 | 4 | 0.57 | 25 | 14.25 | |
|  Sammut Briffa, Peter | | | 2025 | MLT | 0.00 | 1 | -0.24 | 25 | -6.00 | | | Beulertz, Stefan | | | 1834 | MLT | 1.00 | 1 | 0.52 | 25 | 13.00 | |  Vella, Duncan | | | 2000 | MLT | 0.50 | 1 | 0.23 | 25 | 5.75 | | | Sciortino, Marilyn | | | 1864 | MLT | 0.50 | 1 | 0.06 | 25 | 1.50 | |
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) | | | | Candidates 2009 | Sliema | MLT | 2009-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1943 | 1821 | 4.00 | 6 | 1.91 | 25 | 47.75 | |
| | Zerafa, Patrick | c | | 2063 | MLT | 1.00 | 1 | 0.80 | 25 | 20.00 | | | Ibrahim, Ayman | | | 1806 | MLT | 1.00 | 1 | 0.48 | 25 | 12.00 | | | Gauci, Joseph | | | 2093 | MLT | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Richards, John | | | 1799 | MLT | 0.50 | 1 | -0.03 | 25 | -0.75 | | | Aguilar, Filipina | | wc | 1855 | MLT | 1.00 | 1 | 0.55 | 25 | 13.75 | | | Vella, Duncan | | | 2044 | MLT | 0.50 | 1 | 0.28 | 25 | 7.00 | |
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) | | | | 74th Malta Chess Championship Finals | Sliema | MLT | 2009-10-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2068 | 1821 | 2.00 | 10 | 0.04 | 25 | 1.00 | |
| | Pace, Colin | c | | 2140 | MLT | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Zerafa, Patrick | c | | 2063 | MLT | 0.50 | 1 | 0.30 | 25 | 7.50 | | | Gauci, Joseph | | | 2090 | MLT | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Zerafa, Robert | | | 2002 | MLT | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Vella, Duncan | | | 2044 | MLT | 0.50 | 1 | 0.28 | 25 | 7.00 | | | Pace, Colin | c | | 2140 | MLT | 0.00 | 1 | -0.13 | 25 | -3.25 | | | Zerafa, Patrick | c | | 2063 | MLT | 1.00 | 1 | 0.80 | 25 | 20.00 | | | Gauci, Joseph | | | 2090 | MLT | 0.00 | 1 | -0.17 | 25 | -4.25 | | | Zerafa, Robert | | | 2002 | MLT | 0.00 | 1 | -0.26 | 25 | -6.50 | | | Vella, Duncan | | | 2044 | MLT | 0.00 | 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) | | |
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