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Individual Calculations April 2023 |
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| Costa, Vittorio Total change: 12.60 | |   |
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| OP 2 Primavera a Piacenza under 1800 | Piacenza | ITA | 2023-03-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1405 | 1216 | 2.00 | 5 | 0.63 | 20 | 12.60 | |
|  Rocchi, Renato | | | 1500 | ITA | 1.00 | 1 | 0.84 | 20 | 16.80 | |  Losi, Paolo | | | 1538 | ITA | 0.00 | 1 | -0.13 | 20 | -2.60 | | | Costa, Luciano | | | 1418 | ITA | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Folcini, Gaddo | | | 1449 | ITA | 0.00 | 1 | -0.21 | 20 | -4.20 | | | Rivi, Gian Carlo | | | 1119 | ITA | 0.50 | 1 | -0.13 | 20 | -2.60 | |
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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