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Individual Calculations June 2023 |
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| Cohen, Lawrence S Total change: -9.20 | |   |
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| 2023 Illinois Senior | Schaumburg, IL | USA | 2023-05-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1793 | 1774 | 1.00 | 3 | -0.46 | 20 | -9.20 | |
|  Landfair, Dean | | | 1374 * | USA | 0.00 | 1 | -0.92 | 20 | -18.40 | | | Abbott, James | | | 1799 | USA | 0.50 | 1 | 0.03 | 20 | 0.60 | |  Mazock, Michael J | | | 2206 | USA | 0.50 | 1 | 0.43 | 20 | 8.60 | | | * 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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