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Individual Calculations November 2021 |
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| Johannsson, Birkir Isak Total change: 11.20 | |   |
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| Icelandic Team Chess Championship 2021-22 - premier league Round 1-5 | Reykjavik | ISL | 2021-09-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2118 | 2084 | 1.00 | 2 | 0.09 | 20 | 1.80 | |
|  Kristjansson, Atli Freyr | | | 2185 | ISL | 0.50 | 1 | 0.14 | 20 | 2.80 | |  Thorsteinsson, Erlingur | | | 2051 | ISL | 0.50 | 1 | -0.05 | 20 | -1.00 | |
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 2021-22 - 2nd div. Round 1-4 | Reykjavik | ISL | 2021-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1890 | 2098 | 2.00 | 2 | 0.47 | 20 | 9.40 | |
| | Sigurdsson, Birkir Karl | | | 1925 | ISL | 1.00 | 1 | 0.27 | 20 | 5.40 | | | Jonsson, Vidar | | | 1855 | ISL | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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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