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Individual Calculations July 2021 |
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| Pietroni, Costantino Total change: -18.40 | |   |
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| CIG 2021 - CR Marche U14 | Civitanova Marche | ITA | 2021-06-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1224 | 1215 | 1.00 | 3 | -0.46 | 40 | -18.40 | |
|  Zagaglia, Matteo | | | 1342 | ITA | 0.00 | 1 | -0.33 | 40 | -13.20 | |  Pigini, Francesco | | | 1241 | ITA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Serafini, Pedro | | | 1089 | ITA | 1.00 | 1 | 0.33 | 40 | 13.20 | |
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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