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Individual Calculations April 2020 |
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| Lemkin, Ben Total change: 20.00 | |   |
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| GM Koltanowski Marathon 2020 | Berkeley, California | USA | 2020-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1617 | 1524 | 2.00 | 4 | 0.50 | 40 | 20.00 | |
|  Trestor, David J | | | 1627 | USA | 0.00 | 1 | -0.36 | 40 | -14.40 | |  Adkins, Rico | | | 1673 | USA | 1.00 | 1 | 0.70 | 40 | 28.00 | | | Paetz, Mark | | | 1592 | USA | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Asgari, Mohammad R | | | 1574 | USA | 0.50 | 1 | 0.07 | 40 | 2.80 | |
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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