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Individual Calculations October 2021 |
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| Shrauger, Alex Total change: 27.60 | |   |
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| 2021 IM John Grefe Marathon | Berkeley, California | USA | 2021-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1573 | 1688 | 2.00 | 2 | 0.69 | 40 | 27.60 | |
|  Trestor, David | | | 1583 | USA | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Paetz, Mark | | | 1562 | USA | 1.00 | 1 | 0.33 | 40 | 13.20 | |
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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