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Individual Calculations June 2018 |
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| Johannsson, Birkir Isak Total change: -28.40 | |   |
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| Landsmotid i skolaskak 2018 - eldri flokkur - round 5-7 | Reykjavik | ISL | 2018-05-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1557 | 1957 | 2.00 | 2 | 0.16 | 40 | 6.40 | |
|  Thorsteinsson, Almar Mani | | | 1557 * | ISL | 1.00 | 1 | 0.08 | 40 | 3.20 | | | Signyjarson, Arnar Smari | | | 1557 * | ISL | 1.00 | 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) | | | | Meistaramot Skakskola Islands 2018 - A-section | Reykjavik | ISL | 2018-05-25 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1882 | 1957 | 2.00 | 5 | -0.87 | 40 | -34.80 | |
| | Heimisson, Hilmir Freyr | c | | 2131 | ISL | 0.00 | 1 | -0.27 | 40 | -10.80 | |  Briem, Benedikt | | | 1670 | ISL | 1.00 | 1 | 0.16 | 40 | 6.40 | | | Heidarsson, Arnar | | | 1595 | ISL | 0.00 | 1 | -0.90 | 40 | -36.00 | | | Mai, Alexander Oliver | | | 1941 | ISL | 0.50 | 1 | -0.02 | 40 | -0.80 | | | Jonsson, Gauti Pall | | | 2074 | ISL | 0.50 | 1 | 0.16 | 40 | 6.40 | |
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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