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Individual Calculations July 2009 |
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| De Marco, Walter Total change: 3.15 | |   |
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| OP Mare e scacchi | Cattolica | ITA | 2009-06-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1973 | 1932 | 2.00 | 4 | 0.21 | 15 | 3.15 | |
|  Celli, Dario | | | 2108 | ITA | 0.50 | 1 | 0.23 | 15 | 3.45 | |  Faini, Marco | | | 1915 | ITA | 0.50 | 1 | -0.02 | 15 | -0.30 | | | Biancotti, Alessandro | | | 1848 | ITA | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Bonugli, Carlo | | | 2020 | ITA | 0.50 | 1 | 0.12 | 15 | 1.80 | |
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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