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Individual Calculations April 2019 |
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| Poehlmann, Roger Total change: -13.60 | |   |
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| 2019 IM John Grefe Marathon | Berkeley, California | USA | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2012 | 2178 | 2.00 | 4 | -0.68 | 20 | -13.60 | |
|  Ater, Uval | | | 1778 * | ISR | 0.50 | 1 | -0.42 | 20 | -8.40 | |  Maser, Thomas F | | | 1814 | USA | 1.00 | 1 | 0.10 | 20 | 2.00 | | | Oconnor, Derek | | | 2275 | USA | 0.00 | 1 | -0.37 | 20 | -7.40 | | | Ater, Itai | | | 2182 | ISR | 0.50 | 1 | 0.01 | 20 | 0.20 | | | * 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) | | |
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