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Individual Calculations November 2009 |
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| Piccolo, Giuseppe Total change: 1.80 | |   |
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| OP Scacco matto alla donna bianca | Roma | ITA | 2009-09-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1947 | 1675 | 0.50 | 3 | -0.06 | 15 | -0.90 | |
|  Antonelli, Mauro | | | 2075 * | ITA | 0.00 | 1 | -0.08 | 15 | -1.20 | | | Vertechi, Pietro | | | 1959 | ITA | 0.50 | 1 | 0.34 | 15 | 5.10 | |  Ruotolo, Claudio | | | 1806 | ITA | 0.00 | 1 | -0.32 | 15 | -4.80 | | | * 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) | | | | OP 7. A. Zichichi | Ladispoli | ITA | 2009-09-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1864 | 1675 | 1.00 | 3 | 0.18 | 15 | 2.70 | |
| | Parrini, Daniele | | | 2022 | ITA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Placchetta, Omero | | | 1719 | ITA | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Elia, Alessio | | | 1850 | ITA | 0.00 | 1 | -0.27 | 15 | -4.05 | |
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) | | |
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