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Individual Calculations September 2023 |
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| Land, Chris K Total change: -33.20 | |   |
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| 6th Annual Irwin National Tournament of Senior State Champions | Grand Rapids, Michigan | USA | 2023-07-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1806 | 2123 | 2.50 | 5 | -1.66 | 20 | -33.20 | |
|  Altucher, James | | | 1776 | USA | 0.00 | 1 | -0.89 | 20 | -17.80 | |  Hasman, Henry Jhon | | | 1723 * | USA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Elkins, Steve E | | | 1664 | USA | 1.00 | 1 | 0.05 | 20 | 1.00 | | | French, J Kevin | | | 1736 | USA | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Joelson, Daniel | | | 2129 | USA | 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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