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Individual Calculations December 2018 |
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| Ingibergsson, Valgard Total change: -12.80 | |   |
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| Skakthing Gardabaejar 2018 - umf 5-7 | Gardabaer | ISL | 2018-10-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2002 | 1843 | 0.00 | 2 | -0.69 | 20 | -13.80 | |
|  Sigfusson, Sigurdur | f | | 2243 * | ISL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Ingvarsson, Unnar | | | 1761 | ISL | 0.00 | 1 | -0.61 | 20 | -12.20 | | | * 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) | | | | Icelandic Team Chess Championship 2018-19 3rd division Round 1-4 | Reykjavik | ISL | 2018-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1732 | 1843 | 2.00 | 3 | 0.05 | 20 | 1.00 | |
| | Petursson, Stefan Mar | | | 1696 | ISL | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Steinthorsson, Steingrimur | | | 1740 | ISL | 0.50 | 1 | -0.14 | 20 | -2.80 | | | Ingvarsson, Unnar | | | 1761 | ISL | 0.50 | 1 | -0.11 | 20 | -2.20 | |
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) | | |
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