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Individual Calculations November 2010 |
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| Cohen, Micah Total change: 24.25 | |   |
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| 2010 CalChess Labor Day Championships | San Francisco, California | USA | 2010-09-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2132 | 2020 | 1.50 | 5 | -0.29 | 25 | -7.25 | |
|  Lee, Andy C | f | | 2287 | USA | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Sevian, Samuel | | | 2105 | USA | 0.50 | 1 | 0.12 | 25 | 3.00 | |  Haring, Ruth Inez | | wm | 1957 | USA | 0.50 | 1 | -0.09 | 25 | -2.25 | | | Shipman, Walter J | m | | 2189 | USA | 0.00 | 1 | -0.28 | 25 | -7.00 | | | Perepelitsky, Philipp | | | 2121 | USA | 0.50 | 1 | 0.14 | 25 | 3.50 | |
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) | | | | 28th Annual Sands Regency Reno - Western States Open | Reno, Nevada | USA | 2010-10-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2226 | 2020 | 2.50 | 5 | 1.26 | 25 | 31.50 | |
| | Fuentes, Romulo C | | | 2193 | USA | 0.50 | 1 | 0.23 | 25 | 5.75 | | | Zenyuk, Iryna | c | wm | 2271 | USA | 1.00 | 1 | 0.81 | 25 | 20.25 | | | Kretchetov, Alexandre | f | | 2361 | RUS | 0.00 | 1 | -0.12 | 25 | -3.00 | | | Formanek, Edward W | m | | 2242 | USA | 0.00 | 1 | -0.22 | 25 | -5.50 | | | Merwin, Steven E | | | 2061 | USA | 1.00 | 1 | 0.56 | 25 | 14.00 | |
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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