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Individual Calculations November 2009 |
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| Zerafa, Patrick Total change: 14.25 | |   |
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| Candidates 2009 | Sliema | MLT | 2009-08-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1959 | 2063 | 4.00 | 4 | 1.47 | 15 | 22.05 | |
|  Saliba, Matthew | | | 1810 | MLT | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Sacco, Sam | | | 1887 | MLT | 1.00 | 1 | 0.27 | 15 | 4.05 | |  Gauci, Joseph | | | 2093 | MLT | 1.00 | 1 | 0.54 | 15 | 8.10 | | | Vella, Duncan | | | 2044 | MLT | 1.00 | 1 | 0.47 | 15 | 7.05 | |
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 |
| 2019 | 2063 | 5.00 | 10 | -0.52 | 15 | -7.80 | |
| | Zerafa, Robert | | | 2002 | MLT | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Said, Oliver | | | 1821 | MLT | 0.50 | 1 | -0.30 | 15 | -4.50 | | | Pace, Colin | c | | 2140 | MLT | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Vella, Duncan | | | 2044 | MLT | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Gauci, Joseph | | | 2090 | MLT | 0.00 | 1 | -0.46 | 15 | -6.90 | | | Zerafa, Robert | | | 2002 | MLT | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Said, Oliver | | | 1821 | MLT | 0.00 | 1 | -0.80 | 15 | -12.00 | | | Pace, Colin | c | | 2140 | MLT | 0.50 | 1 | 0.11 | 15 | 1.65 | | | Vella, Duncan | | | 2044 | MLT | 0.50 | 1 | -0.03 | 15 | -0.45 | | | Gauci, Joseph | | | 2090 | MLT | 1.00 | 1 | 0.54 | 15 | 8.10 | |
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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