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Individual Calculations July 2009 |
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| Rupel, David G Total change: 0.60 | |   |
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| 9th Annual Sands Regency Reno - Far West Open | Reno, Nevada | USA | 2009-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2249 | 2107 | 1.50 | 4 | 0.15 | 15 | 2.25 | |
|  Khachiyan, Melikset | g | | 2457 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | |  Harmon-Vellotti, L | | | 2011 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Liou, Yian | | | 2140 | USA | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Mezentsev, Vladimir | m | | 2387 | RUS | 0.00 | 1 | -0.16 | 15 | -2.40 | |
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) | | | | 2009 Washington Open | Spokane, Washington | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2204 | 2107 | 1.00 | 3 | -0.11 | 15 | -1.65 | |
| | Collyer, Curt | | | 2289 | USA | 0.50 | 1 | 0.24 | 15 | 3.60 | | | Kelley, Dereque | | | 2149 | USA | 0.50 | 1 | 0.06 | 15 | 0.90 | | | Breckenridge, Steven | | | 2175 | USA | 0.00 | 1 | -0.41 | 15 | -6.15 | |
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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