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Individual Calculations April 2009 |
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| Acon, Jennifer C Total change: -5.40 | |   |
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| 16th Annual Western Class Championshipw | Agoura Hills, California | USA | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2114 | 1800 | 0.00 | 1 | -0.14 | 15 | -2.10 | |
|  Akopian, Robert | | | 2114 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | |
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) | | | | 26th Annual U.S Amateur Team West | Woodland Hills, CA | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2150 | 1800 | 0.00 | 2 | -0.22 | 15 | -3.30 | |
| | Hurdle Jr, Robert | | | 2150 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Maki, James J | f | | 2150 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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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