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Individual Calculations April 2023 |
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| Halldorsson, Bragi Total change: -17.00 | |   |
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| Skakmot odlinga 2023 Round 3-7 | Reykjavik | ISL | 2023-03-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1816 | 2067 | 4.00 | 5 | 0.04 | 20 | 0.80 | |
|  Pettersson, Michael | | | 1667 * | ISL | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Fridthjofsson, Sigurjon Thor | | | 1796 | ISL | 1.00 | 1 | 0.17 | 20 | 3.40 | |  Jonsson, Johann | | | 1761 | ISL | 1.00 | 1 | 0.14 | 20 | 2.80 | | | Baldursson, Haraldur | | | 1815 | ISL | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Ptacnikova, Lenka | | wg | 2040 | ISL | 0.00 | 1 | -0.54 | 20 | -10.80 | | | * 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 Championship 2022-23 - Premier League Round 6-10 | Reykjavik | ISL | 2023-03-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2173 | 2067 | 1.00 | 5 | -0.89 | 20 | -17.80 | |
| | Petersson, Baldur Teodor | c | | 2209 | SWE | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Briem, Stephan | | | 2142 | ISL | 0.00 | 1 | -0.40 | 20 | -8.00 | | | Hauksson, Hordur Aron | | | 1928 | ISL | 1.00 | 1 | 0.31 | 20 | 6.20 | | | Gunnarsson, Jon Viktor | m | | 2444 | ISL | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Birkisson, Bardur Orn | c | | 2142 | ISL | 0.00 | 1 | -0.40 | 20 | -8.00 | |
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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