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Individual Calculations December 2018 |
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| Valsson, Arnar Total change: 56.40 | |   |
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| U-2000 mot TR | Reykjavik | ISL | 2018-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1349 | 1193 | 2.50 | 6 | 0.66 | 40 | 26.40 | |
|  Aronsson, Gudmundur | | | 1573 | ISL | 0.00 | 1 | -0.09 | 40 | -3.60 | |  Thrastarson, Tryggvi K | | | 1315 | ISL | 0.50 | 1 | 0.17 | 40 | 6.80 | | | Omarsson, Adam | | | 1278 | ISL | 0.50 | 1 | 0.12 | 40 | 4.80 | | | Jonsson, Kristjan Dagur | | | 1365 | ISL | 0.00 | 1 | -0.27 | 40 | -10.80 | | | Helgadottir, Idunn | | | 1195 | ISL | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Hjaltason, Thorarinn | | | 1366 | ISL | 0.50 | 1 | 0.23 | 40 | 9.20 | |
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) | | | | Icelandic Team Chess Championship 2018-19 4th Division Round 1-4 | Reykjavik | ISL | 2018-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1589 | 1193 | 1.00 | 3 | 0.75 | 40 | 30.00 | |
| | Davidsson, Joshua | | | 1582 | ISL | 1.00 | 1 | 0.91 | 40 | 36.40 | | | Saemundsson, Bjarni | | | 1593 * | ISL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Stefansson, Kristjan | | | 1593 * | ISL | 0.00 | 1 | -0.08 | 40 | -3.20 | | | * 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) | | |
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