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Individual Calculations January 2009 |
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| Acon, Jennifer C Total change: 6.30 | |   |
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| 26th Annual Sands Regency Reno - Western States Open | Reno, Nevada | USA | 2008-10-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2117 | 1794 | 0.50 | 4 | -0.02 | 15 | -0.30 | |
|  Yanayt, Eugene | f | | 2144 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Straver, Edwin | f | | 2144 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Fairbairn, Stephen | | | 2077 | USA | 0.50 | 1 | 0.34 | 15 | 5.10 | | | Mackenzie, Dana N | | | 2104 | 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) | | | | 44th Annual American Open | Los Angeles, California | USA | 2008-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2062 | 1794 | 1.00 | 3 | 0.44 | 15 | 6.60 | |
| | Williams Paulsen, Bryan S | | | 2136 | USA | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Akopian, Robert | | | 2105 | USA | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Hanken, Jerome B | | | 1945 | USA | 1.00 | 1 | 0.70 | 15 | 10.50 | |
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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