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Individual Calculations May 2015 |
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| Brack, Frank Edward Total change: -9.20 | |   |
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| 2015 Lone Star Open | Houston, Texas | USA | 2015-03-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2009 | 1909 | 0.50 | 2 | -0.23 | 40 | -9.20 | |
|  Hobart, Christopher | | | 2021 | USA | 0.50 | 1 | 0.15 | 40 | 6.00 | |  Guerra, Anthony | | | 1996 | USA | 0.00 | 1 | -0.38 | 40 | -15.20 | |
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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