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Individual Calculations May 2019 |
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| Mariotti, Sergio Total change: -2.10 | |   |
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| WE 2 Lido di Ostia - A | Roma | ITA | 2019-03-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1954 | 2281 | 4.00 | 5 | -0.30 | 10 | -3.00 | |
|  De Simone, Gianluca | | | 1881 * | ITA | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Rossi, Pierluigi | | | 1881 * | ITA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Pompa, Alessandro | | | 2017 | ITA | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Macchini, Bruno | | | 1881 * | ITA | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Maggi, Fabrizio | | | 2111 | ITA | 0.50 | 1 | -0.22 | 10 | -2.20 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 2019 World Senior Team Chess Championships open 50plus | Rhodes | GRE | 2019-04-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2297 | 2280 | 2.00 | 4 | 0.09 | 10 | 0.90 | |
| | Gamback, Bjorn | c | | 2101 | SWE | 0.50 | 1 | -0.23 | 10 | -2.30 | | | Petursson, Margeir | g | | 2492 | ISL | 0.50 | 1 | 0.27 | 10 | 2.70 | | | Denk, Adolf | f | | 2255 | AUT | 0.50 | 1 | -0.03 | 10 | -0.30 | | | Brendel, Oliver | m | | 2339 | GER | 0.50 | 1 | 0.08 | 10 | 0.80 | |
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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