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Individual Calculations October 2008 |
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| Powell, Mitchell Total change: 58.25 | |   |
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| 109th Annual US Open | Dallas, Texas | USA | 2008-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2181 | 1925 | 4.50 | 7 | 3.15 | 25 | 78.75 | |
|  Strenzwilk, Denis | | | 2055 | USA | 1.00 | 1 | 0.68 | 25 | 17.00 | |  Arnold, Marc Tyler | f | | 2275 | USA | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Rea, Andrew B | | | 2157 | USA | 1.00 | 1 | 0.79 | 25 | 19.75 | | | Lopez Ii, Nelson M | | | 2124 | USA | 1.00 | 1 | 0.76 | 25 | 19.00 | | | Landaw, Julian W | | | 2246 | USA | 0.50 | 1 | 0.37 | 25 | 9.25 | | | Blanco, Alvaro | m | | 2275 | MEX | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Dejmek, Mark W | | | 2136 | 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) | | | | 74th Annual Southwest Open | Fort Worth, Texas | USA | 2008-08-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2019 | 1925 | 0.00 | 2 | -0.82 | 25 | -20.50 | |
| | Wang, Puchen | m | | 2275 | NZL | 0.00 | 1 | -0.11 | 25 | -2.75 | | | Lin, Dachey | | | 1763 | USA | 0.00 | 1 | -0.71 | 25 | -17.75 | |
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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