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Individual Calculations October 2021 |
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| Yanofsky, Kevin Total change: -2.00 | |   |
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| 2021 IM John Grefe Marathon | Berkeley, California | USA | 2021-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1588 | 1817 | 3.00 | 4 | -0.10 | 20 | -2.00 | |
|  Soltani, Mohammad | | | 1465 | USA | 1.00 | 1 | 0.11 | 20 | 2.20 | |  Paetz, Mark | | | 1562 | USA | 0.50 | 1 | -0.31 | 20 | -6.20 | | | Sherwood, Peter | | | 1603 | USA | 1.00 | 1 | 0.23 | 20 | 4.60 | | | Del Rosario, Frisco | | | 1723 | USA | 0.50 | 1 | -0.13 | 20 | -2.60 | |
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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