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Individual Calculations September 2021 |
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| Petcu, Gabriel Total change: 8.40 | |   |
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| WE La regina degli scacchi a Roma - D | Roma | ITA | 2021-07-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1507 | 1202 | 0.00 | 2 | -0.29 | 40 | -11.60 | |
|  Fontana, Alessandro | | | 1553 | ITA | 0.00 | 1 | -0.11 | 40 | -4.40 | |  Di Maulo, Chiara | | | 1461 | ITA | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | | | CIG 2021 - Finale U10 | Salsomaggiore Terme | ITA | 2021-08-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1321 | 1225 | 2.00 | 4 | 0.50 | 40 | 20.00 | |
| | Polidoro, Ettore | | | 1334 | ITA | 1.00 | 1 | 0.65 | 40 | 26.00 | | | Di Bartolomeo, Adrian Mikail | | | 1417 | ITA | 0.00 | 1 | -0.25 | 40 | -10.00 | | | Nassa, Nicolas | | | 1413 | ITA | 0.00 | 1 | -0.26 | 40 | -10.40 | | | Saporito, Giulio Cong Yan | | | 1120 | ITA | 1.00 | 1 | 0.36 | 40 | 14.40 | |
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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