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Individual Calculations April 2009 |
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| Antonio Jr, Rogelio Total change: -0.80 | |   |
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| 2008 Motor City Open | Auburn Hills, Michigan | USA | 2008-11-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2527 | 2515 | 0.50 | 1 | 0.02 | 10 | 0.20 | |
|  Finegold, Ben | m | | 2527 | USA | 0.50 | 1 | 0.02 | 10 | 0.20 | |
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) | | | | 18th Annual North American Open | Las vegas, Nevada | USA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2480 | 2515 | 1.50 | 3 | -0.10 | 10 | -1.00 | |
|  Villanueva, Hugo | | | 2242 | PHI | 1.00 | 1 | 0.17 | 10 | 1.70 | | | Shulman, Yury | g | | 2616 | USA | 0.50 | 1 | 0.14 | 10 | 1.40 | | | Ehlvest, Jaan | g | | 2581 | USA | 0.00 | 1 | -0.41 | 10 | -4.10 | |
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) | | |
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