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Individual Calculations March 2011 |
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| Harmon-Vellotti, Luke Total change: -15.15 | |   |
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| 20th Annual North American Open | Las Vegas, Nevada | USA | 2010-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2229 | 2143 | 1.00 | 4 | -0.61 | 15 | -9.15 | |
|  Kleiman, Jake | m | | 2405 | USA | 0.50 | 1 | 0.32 | 15 | 4.80 | |  Arnold, Marc Tyler | m | | 2425 | USA | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Itkis, Hana | | wf | 2087 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | | | O`Reilly, Steven | | | 1998 | AUS | 0.00 | 1 | -0.69 | 15 | -10.35 | |
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) | | | | 2nd Annual Golden State Open | Concord, California | USA | 2011-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2101 | 2143 | 3.00 | 6 | -0.40 | 15 | -6.00 | |
| | Khachiyan, Melikset | g | | 2518 | USA | 0.00 | 1 | -0.09 | 15 | -1.35 | | | Chiang, Sarah | | wc | 1882 | USA | 0.50 | 1 | -0.32 | 15 | -4.80 | | | Perepelitsky, Philipp | | | 2109 | USA | 0.50 | 1 | -0.05 | 15 | -0.75 | | | Chan, Julian M | | | 2111 | USA | 0.50 | 1 | -0.04 | 15 | -0.60 | | | Seitzer, Phillip | | | 1992 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Gaffagan, Steven R | | | 1995 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | |
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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