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Individual Calculations October 2021 |
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| Kalonaris, Zeno Total change: 30.80 | |   |
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| 2021 IM John Grefe Marathon | Berkeley, California | USA | 2021-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1553 | 1573 | 4.00 | 6 | 0.77 | 40 | 30.80 | |
|  Glasscoe, Alan | | | 1475 | USA | 1.00 | 1 | 0.37 | 40 | 14.80 | |  Maser, Tom | | | 1752 | USA | 0.50 | 1 | 0.23 | 40 | 9.20 | | | Thibault, William | | | 1249 | USA | 1.00 | 1 | 0.13 | 40 | 5.20 | | | Nagel, Ralph | | | 1402 | USA | 1.00 | 1 | 0.27 | 40 | 10.80 | | | Winslow, Elliott | m | | 1973 * | USA | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Soltani, Mohammad | | | 1465 | USA | 0.50 | 1 | -0.15 | 40 | -6.00 | | | * 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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