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Individual Calculations October 2023 |
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| Costa, Vittorio Total change: 2.00 | |   |
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| WE Piacenza chess festival - C | Piacenza | ITA | 2023-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1381 | 1255 | 1.50 | 4 | 0.10 | 20 | 2.00 | |
|  Ferrari, Andrea | | | 1457 | ITA | 0.50 | 1 | 0.26 | 20 | 5.20 | |  Foroni, Francesco | | | 1591 | ITA | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Amadei, Beatrice | | | 1066 | ITA | 0.50 | 1 | -0.25 | 20 | -5.00 | | | De Simone, Alessandro | | | 1409 | ITA | 0.50 | 1 | 0.21 | 20 | 4.20 | |
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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