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Individual Calculations January 2019 |
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| Pietroni, Costantino Total change: 35.20 | |   |
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| WE 16 Grand Hotel Adriatico - C | Montesilvano | ITA | 2018-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1364 | 1115 | 1.50 | 3 | 0.88 | 40 | 35.20 | |
|  Marvulli, Michele | | | 1310 | ITA | 1.00 | 1 | 0.75 | 40 | 30.00 | |  Gallo, Fausto | | | 1507 | ITA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Rosati, Rosanna | | | 1276 | ITA | 0.50 | 1 | 0.21 | 40 | 8.40 | |
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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