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Individual Calculations December 2018 |
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| Petersen, Jakob Alexander Total change: -6.00 | |   |
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| U-2000 mot TR | Reykjavik | ISL | 2018-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1562 | 1496 | 2.00 | 6 | -0.49 | 20 | -9.80 | |
|  Baldursson, Haraldur | | | 1896 * | ISL | 0.00 | 1 | -0.08 | 20 | -1.60 | |  Skarphedinsson, Ingvar Wu | | | 1145 | ISL | 1.00 | 1 | 0.11 | 20 | 2.20 | | | Fridthofsson, Sigurjon Thor | | | 1599 | ISL | 0.00 | 1 | -0.36 | 20 | -7.20 | | | Aronsson, Gudmundur | | | 1573 | ISL | 1.00 | 1 | 0.61 | 20 | 12.20 | | | Briem, Hedinn | | | 1612 | ISL | 0.00 | 1 | -0.34 | 20 | -6.80 | | | Bjarnason, Larus H | | | 1547 | ISL | 0.00 | 1 | -0.43 | 20 | -8.60 | | | * 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 Chess Championship 2018-19 3rd division Round 1-4 | Reykjavik | ISL | 2018-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1244 | 1496 | 1.00 | 1 | 0.19 | 20 | 3.80 | |
| | Hafdisarson, Ingi Thor | | | 1244 | ISL | 1.00 | 1 | 0.19 | 20 | 3.80 | |
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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