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Individual Calculations April 2009 |
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| Petrucci, Riccardo Total change: -1.25 | |   |
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| FE 6 Arrocco | Roma | ITA | 2009-01-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2039 | 1774 | 0.00 | 1 | -0.18 | 25 | -4.50 | |
|  Maggi, Fabrizio | | | 2039 | ITA | 0.00 | 1 | -0.18 | 25 | -4.50 | |
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) | | | | CP Roma | Roma | ITA | 2009-02-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2107 | 1774 | 0.50 | 3 | 0.13 | 25 | 3.25 | |
| | Napoli, Nicolo` | f | | 2124 | ITA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Palermo, Stefano | | | 2074 | ITA | 0.50 | 1 | 0.35 | 25 | 8.75 | |  Farina, Saverio | | | 2124 | ITA | 0.00 | 1 | -0.11 | 25 | -2.75 | |
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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