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Individual Calculations July 2009 |
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| Guglielmetti, Oscar Total change: 3.75 | |   |
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| Amateur CHessOPEN | Lugano | SUI | 2009-04-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1945 | 1813 | 1.00 | 3 | -0.06 | 25 | -1.50 | |
|  Sgnaolin, Davide | | | 2163 | ITA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Ludin, Hubert | | | 2009 | SUI | 0.00 | 1 | -0.25 | 25 | -6.25 | | | Barlotti, Gabriele | | | 1664 | ITA | 1.00 | 1 | 0.30 | 25 | 7.50 | |
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) | | | | OP 4 Citta' di Bolzano | Bolzano | ITA | 2009-05-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1843 | 1813 | 1.00 | 2 | 0.08 | 25 | 2.00 | |
| | Paltrinieri, Mario | | | 1701 | ITA | 1.00 | 1 | 0.35 | 25 | 8.75 | |  Loi, Andrea | | | 1985 | ITA | 0.00 | 1 | -0.27 | 25 | -6.75 | |
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) | | | | OP Giugno | Milano | ITA | 2009-06-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1861 | 1813 | 1.50 | 3 | 0.13 | 25 | 3.25 | |
| | Quaranta, Cristiano | | | 2157 | ITA | 0.00 | 1 | -0.12 | 25 | -3.00 | | | Madaschi, Sergio | | | 1595 | ITA | 1.00 | 1 | 0.22 | 25 | 5.50 | | | Acunzo, Domenico | | | 1831 | ITA | 0.50 | 1 | 0.03 | 25 | 0.75 | |
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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