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Individual Calculations January 2010 |
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| Kretchetov, Alexander Total change: -2.40 | |   |
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| 27th Annual Sands Regency - Western States Open | Reno, Nevada | USA | 2009-10-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2189 | 2365 | 4.50 | 6 | 0.13 | 15 | 1.95 | |
|  Breckenridge, Steve | | | 2169 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Poehlmann, Roger M | | | 2212 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Carreto, Giovanni | c | | 2228 | MEX | 0.50 | 1 | -0.18 | 15 | -2.70 | | | Karklins, Andrew | f | | 2216 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Kudryavtsev, Vadim | | | 2147 | RUS | 1.00 | 1 | 0.22 | 15 | 3.30 | | | Greanias, Steven D | | | 2161 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | |
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) | | | | 45th Annual American Open | Los Angeles, California | USA | 2009-11-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2188 | 2395 | 2.00 | 3 | -0.29 | 15 | -4.35 | |
| | Gutman, Joshua | | | 2134 | USA | 0.50 | 1 | -0.32 | 15 | -4.80 | | | Chen, Howard | | | 2194 | USA | 0.50 | 1 | -0.26 | 15 | -3.90 | | | Yurenok, Sergey | | | 2236 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | |
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) | | |
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