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Individual Calculations October 2008 |
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| Friedman, David M Total change: -12.00 | |   |
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| 50th Gem City Open | Dayton, Ohio | USA | 2008-06-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2267 | 1949 | 0.00 | 2 | -0.27 | 25 | -6.75 | |
|  Tate, Emory | m | | 2299 | USA | 0.00 | 1 | -0.11 | 25 | -2.75 | |  McCarthy, Brian | | | 2234 | USA | 0.00 | 1 | -0.16 | 25 | -4.00 | |
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) | | | | 64th Annual Ohio Chess Congress | Columbus, Ohio | USA | 2008-08-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2184 | 1949 | 0.00 | 1 | -0.21 | 25 | -5.25 | |
| | Wright, William B | | | 2184 | USA | 0.00 | 1 | -0.21 | 25 | -5.25 | |
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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