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Individual Calculations March 2023 |
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| Stefansson, Vignir Vatnar Total change: -4.40 | |   |
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| Skakthing Reykjavikur 2023 | Reykjavik | ISL | 2023-01-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2034 | 2458 | 6.50 | 9 | -1.58 | 10 | -15.80 | |
|  Heidarsson, Mikael Bjarki | | | 2058 * | ISL | 1.00 | 1 | 0.08 | 10 | 0.80 | |  Ragnarsson, Johann | | | 1900 | ISL | 0.00 | 1 | -0.97 | 10 | -9.70 | | | Briem, Stephan | | | 2128 | ISL | 1.00 | 1 | 0.12 | 10 | 1.20 | | | Geirsson, Kristjan | | | 1698 | ISL | 1.00 | 1 | 0.00 | 10 | 0.00 | | | Haraldsson, Haraldur | | | 1918 | ISL | 1.00 | 1 | 0.03 | 10 | 0.30 | | | Heidarsson, Arnar Milutin | | | 2032 | ISL | 1.00 | 1 | 0.07 | 10 | 0.70 | | | Domalchuk-Jonasson, Aleksandr | f | | 2352 | ISL | 1.00 | 1 | 0.36 | 10 | 3.60 | | | Briem, Benedikt | | | 2101 | ISL | 0.50 | 1 | -0.39 | 10 | -3.90 | | | Mai, Alexander Oliver | | | 2119 | ISL | 0.00 | 1 | -0.88 | 10 | -8.80 | | | * 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) | | | | Skakhatid Fulltingis 2023 A flokkur 4-7 | Gardabaer | ISL | 2023-01-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2475 | 2458 | 2.00 | 4 | 0.10 | 10 | 1.00 | |
| | Hjartarson, Johann | g | | 2476 | ISL | 1.00 | 1 | 0.53 | 10 | 5.30 | | | Gretarsson, Helgi Ass | g | | 2451 | ISL | 0.00 | 1 | -0.51 | 10 | -5.10 | | | Gretarsson, Hjorvar Steinn | g | | 2544 | ISL | 0.50 | 1 | 0.12 | 10 | 1.20 | | | Thorfinnsson, Bragi | g | | 2430 | ISL | 0.50 | 1 | -0.04 | 10 | -0.40 | |
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) | | | | Nordic Youth Championship 2023 A | Oslo | NOR | 2023-02-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2178 | 2466 | 5.50 | 6 | 0.55 | 10 | 5.50 | |
| | Nielsen, Jon I Horni | | | 2034 | FAI | 0.50 | 1 | -0.43 | 10 | -4.30 | | | Schouten, Mathias Lind | | | 2114 | NOR | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Meskenas, Paulius | | | 2253 | DEN | 1.00 | 1 | 0.23 | 10 | 2.30 | | | Domalchuk-Jonasson, Aleksandr | f | | 2336 | ISL | 1.00 | 1 | 0.32 | 10 | 3.20 | | | Ostlund, Joar | c | | 2267 | SWE | 1.00 | 1 | 0.24 | 10 | 2.40 | | | Kallunki, Konsta | | | 2066 * | FIN | 1.00 | 1 | 0.08 | 10 | 0.80 | | | * 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) | | | | Kragero Resort Chess International 2023 Title group | Kragero | NOR | 2023-02-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2366 | 2466 | 6.00 | 9 | 0.49 | 10 | 4.90 | |
| | Oommen, John Samuel | | | 2055 | NOR | 1.00 | 1 | 0.08 | 10 | 0.80 | | | Shehzad, Shazil | | | 2225 | NOR | 0.50 | 1 | -0.30 | 10 | -3.00 | | | Kreken, Eivind Grunt | | | 2192 | NOR | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Van Foreest, Lucas | g | | 2571 | NED | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Lie, Kjetil A. | g | | 2525 | NOR | 0.50 | 1 | 0.08 | 10 | 0.80 | | | Dragnev, Valentin | g | | 2565 | AUT | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Efroimski, Marsel | m | wg | 2456 | ISR | 0.50 | 1 | -0.01 | 10 | -0.10 | | | Rosen, Eric | m | | 2356 | USA | 0.50 | 1 | -0.15 | 10 | -1.50 | | | Zatonskih, Anna | m | wg | 2348 | USA | 1.00 | 1 | 0.34 | 10 | 3.40 | |
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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