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Individual Calculations July 2008 |
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| Bournival, Braden Total change: -17.10 | |   |
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| 77th Massachusetts Open | Boxborough, MA | USA | 2008-05-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2247 | 2320 | 1.50 | 3 | -0.30 | 15 | -4.50 | |
|  Cherniack, Alex | | | 2262 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Williams, Christopher | | | 2189 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | |  Mac, Intyre Paul | f | | 2291 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | |
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) | | | | 2008 National Open | Las Vegas, Nevada | USA | 2008-06-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2104 | 2320 | 3.00 | 5 | -0.84 | 15 | -12.60 | |
| | Perezcaneselle, Franc | | | 1976 | ESP | 1.00 | 1 | 0.12 | 15 | 1.80 | | | Wallach, Kenneth | | | 2189 | USA | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Santalla, Andres | | | 2069 | USA | 0.50 | 1 | -0.31 | 15 | -4.65 | | | Iwu, Okechukwu | | | 2173 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Fuentes, Romulo | | | 2113 | USA | 0.50 | 1 | -0.27 | 15 | -4.05 | |
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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