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Individual Calculations December 2020 |
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| Vaccari, Marco Total change: 47.60 | |   |
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| OP 13 Giochi e ritorni | Modena | ITA | 2020-10-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1590 | 1349 | 3.50 | 5 | 2.38 | 20 | 47.60 | |
|  Mammi, Ottavio | | | 1684 | ITA | 1.00 | 1 | 0.88 | 20 | 17.60 | |  Mammi, Samuele | | | 1749 * | ITA | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Appeddu, Alessandro | | | 1621 | ITA | 1.00 | 1 | 0.83 | 20 | 16.60 | | | Mazilu, David Andrei | | | 1567 | ITA | 0.50 | 1 | 0.28 | 20 | 5.60 | | | Vaccari, Luigi | | | 1331 | ITA | 1.00 | 1 | 0.47 | 20 | 9.40 | | | * 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) | | |
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