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Individual Calculations September 2009 |
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| Virzi, Ettore Total change: -33.15 | |   |
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| OP Luglio a Milano | Milano | ITA | 2009-07-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1787 | 2019 | 2.50 | 5 | -1.35 | 15 | -20.25 | |
|  Palmieri, Giovanni | | | 1718 | ITA | 0.50 | 1 | -0.35 | 15 | -5.25 | |  Lanzani, Giuliano | | | 2012 | ITA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Gonella, Daniele | | | 1778 | ITA | 0.00 | 1 | -0.80 | 15 | -12.00 | | | Calabrese, Maurizio | | | 1619 * | ITA | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Margstahler, Francesco | | | 1808 | ITA | 0.50 | 1 | -0.27 | 15 | -4.05 | | | * 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 Agosto a Milano | Milano | ITA | 2009-07-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1927 | 2019 | 3.50 | 7 | -0.86 | 15 | -12.90 | |
| | Colombo, Luca | | | 1840 | ITA | 0.50 | 1 | -0.23 | 15 | -3.45 | | | Galli, Fabio | | | 2057 | ITA | 0.00 | 1 | -0.45 | 15 | -6.75 | | | Papale, Carmelo | | | 1886 | ITA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Cetta, Andrea | | | 1853 | ITA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Corti, Massimo | | | 2029 | ITA | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Delledonne, Francesco | | | 1936 | ITA | 0.50 | 1 | -0.11 | 15 | -1.65 | | | Coladangelo, Andrea | | | 1885 | ITA | 0.50 | 1 | -0.18 | 15 | -2.70 | |
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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