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Individual Calculations January 2021 |
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| Vuelban, Virgilio Total change: 5.20 | |   |
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| WE 25 Memorial Roberto Magari - A | Siena | ITA | 2020-12-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2123 | 2277 | 4.00 | 5 | 0.60 | 10 | 6.00 | |
|  Ravagnani, Tiziano | | | 1877 * | ITA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Bettalli, Marco | | | 2062 | ITA | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Salami, Marco | | | 2166 | ITA | 0.50 | 1 | -0.15 | 10 | -1.50 | | | Orfini, Nicolo | | | 2278 | ITA | 0.50 | 1 | 0.00 | 10 | 0.00 | | | Bettalli, Francesco | | | 2232 | ITA | 1.00 | 1 | 0.44 | 10 | 4.40 | | | * 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) | | | | WE 20 Grand Hotel Adriatico - A | Montesilvano | ITA | 2020-12-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1998 | 2277 | 4.00 | 5 | -0.08 | 10 | -0.80 | |
| | Pierantozzi, Stanislao | | | 1970 | ITA | 1.00 | 1 | 0.14 | 10 | 1.40 | | | Martinelli, Valeria | | | 1880 | ITA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Bettalli, Francesco | | | 2232 | ITA | 0.00 | 1 | -0.56 | 10 | -5.60 | | | Maione, Melissa | | | 2007 | ITA | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Pallante, Simone | | | 1899 | ITA | 1.00 | 1 | 0.09 | 10 | 0.90 | |
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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