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Individual Calculations July 2009 |
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| Johnson, Chuck Total change: 47.75 | |   |
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| 27th North American FIDE Open | Stillwater, Oklahoma | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2007 | 1702 | 2.50 | 4 | 1.91 | 25 | 47.75 | |
|  Patton, Tom | | | 2052 | USA | 1.00 | 1 | 0.89 | 25 | 22.25 | |  Wright, Terry | | | 2023 | USA | 0.50 | 1 | 0.37 | 25 | 9.25 | | | Cohen, Larry | | | 2039 | USA | 0.00 | 1 | -0.12 | 25 | -3.00 | | | Gatica, Jose | | | 1915 | USA | 1.00 | 1 | 0.77 | 25 | 19.25 | |
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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