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Individual Calculations November 2009 |
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| Zerafa, Robert Total change: 8.70 | |   |
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| Malta Junior Championship 2009 | Sliema | MLT | 2009-09-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1715 | 2002 | 1.00 | 1 | 0.16 | 15 | 2.40 | |
|  Xuereb, Andre | | | 1715 | MLT | 1.00 | 1 | 0.16 | 15 | 2.40 | |
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 |
| 2032 | 2002 | 5.00 | 10 | 0.42 | 15 | 6.30 | |
| | Zerafa, Patrick | c | | 2063 | MLT | 0.50 | 1 | 0.08 | 15 | 1.20 | |  Gauci, Joseph | | | 2090 | MLT | 0.50 | 1 | 0.12 | 15 | 1.80 | | | Vella, Duncan | | | 2044 | MLT | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Said, Oliver | | | 1821 | MLT | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Pace, Colin | c | | 2140 | MLT | 1.00 | 1 | 0.69 | 15 | 10.35 | | | Zerafa, Patrick | c | | 2063 | MLT | 0.50 | 1 | 0.08 | 15 | 1.20 | | | Gauci, Joseph | | | 2090 | MLT | 0.00 | 1 | -0.38 | 15 | -5.70 | | | Vella, Duncan | | | 2044 | MLT | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Said, Oliver | | | 1821 | MLT | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Pace, Colin | c | | 2140 | MLT | 0.00 | 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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