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Individual Calculations March 2012 |
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| Kelley, Dereque D Total change: -7.05 | |   |
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| 21st Annual North American Open - Open Section | Las Vegas, Nevada | USA | 2011-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2293 | 2231 | 2.50 | 6 | 0.02 | 15 | 0.30 | |
|  Arnold, Marc Tyler | m | | 2504 | USA | 0.50 | 1 | 0.33 | 15 | 4.95 | | | De Guzman, Ricardo | m | | 2390 | PHI | 0.00 | 1 | -0.29 | 15 | -4.35 | |  Kretchetov, Alexandre | f | | 2347 | RUS | 0.50 | 1 | 0.16 | 15 | 2.40 | | | Helfst, Matt D | | | 1942 | USA | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Liu, Elliott J | f | | 2295 | USA | 0.00 | 1 | -0.41 | 15 | -6.15 | | | Troff, Kayden W | f | | 2279 | USA | 0.50 | 1 | 0.07 | 15 | 1.05 | |
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) | | | | 2012 Washington State Championship - Open | Seattle, Washington | USA | 2012-02-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 2249 | 4.50 | 9 | -0.49 | 15 | -7.35 | |
| | Golub, David | | | 2157 | USA | 0.00 | 1 | -0.63 | 15 | -9.45 | | | Lapid Shafriri, G | | | 2175 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Sinanan, Joshua C | | | 2228 | USA | 0.00 | 1 | -0.53 | 15 | -7.95 | | | Greninger, Harley | | | 2204 | USA | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Chen, Howard Jed | | | 2356 | USA | 0.00 | 1 | -0.35 | 15 | -5.25 | | | Pupols, Viktors | | | 2154 | USA | 1.00 | 1 | 0.37 | 15 | 5.55 | | | Koons, Nat W | | | 2265 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Perez, Ignacio | f | | 2235 | USA | 0.00 | 1 | -0.52 | 15 | -7.80 | | | Ummel, Igor | | | 2110 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | |
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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