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Individual Calculations January 2018 |
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| Petrini, Roberto Total change: 39.80 | |   |
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| OP 4 Memorial Marco Ori | Cesena | ITA | 2017-12-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1728 | 1362 | 2.50 | 5 | 1.99 | 20 | 39.80 | |
|  Giovanardi, Rino | | | 1762 * | ITA | 1.00 | 1 | 0.92 | 20 | 18.40 | | | Giordani, Roberto | | | 1762 * | ITA | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Pecci, William | | | 1750 | ITA | 1.00 | 1 | 0.91 | 20 | 18.20 | | | Condello, Carlo | | | 1713 | ITA | 0.00 | 1 | -0.11 | 20 | -2.20 | | | Rossi, Davide | | | 1654 | ITA | 0.50 | 1 | 0.35 | 20 | 7.00 | | | * 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) | | |
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