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Individual Calculations April 2018 |
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| Sigurthorsson, Kristinn J Total change: 6.00 | |   |
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| Icelandic Team Championship 2017-18 4th division Round 5-7 | Reykjavik | ISL | 2018-03-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1806 | 1744 | 0.50 | 2 | -0.33 | 20 | -6.60 | |
|  Kristjansson, Sigurdur | | | 1808 | ISL | 0.00 | 1 | -0.41 | 20 | -8.20 | |  Magnusson, Thorlakur | | | 1804 | ISL | 0.50 | 1 | 0.08 | 20 | 1.60 | |
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) | | | | GAMMA Reykjavik Open 2018 - Bobby Fischer Memorial | Reykjavik | ISL | 2018-03-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1890 | 1744 | 3.00 | 7 | 0.63 | 20 | 12.60 | |
| | Sigurdsson, Birkir Karl | | | 1928 | ISL | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Sigurdsson, Baldur Heidar | | | 1540 | ISL | 1.00 | 1 | 0.24 | 20 | 4.80 | | | Loftsson, Hrafn | | | 2144 * | ISL | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Davidsdottir, Nansy | | | 1975 | ISL | 1.00 | 1 | 0.79 | 20 | 15.80 | | | Kristjansson, Atli Freyr | | | 2123 | ISL | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Mortensen, Rogvi | | | 2018 | FAI | 0.00 | 1 | -0.17 | 20 | -3.40 | | | Sigurvaldason, Hjalmar | | | 1499 | ISL | 1.00 | 1 | 0.20 | 20 | 4.00 | | | * 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) | | |
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