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Individual Calculations April 2009 |
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| Traub, Igor Total change: -0.25 | |   |
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| Fall TNM (MI Club Championship) | San Francisco, CA | USA | 2008-10-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2032 | 2025 | 1.50 | 3 | 0.02 | 25 | 0.50 | |
|  Smelansky, Vadim | | | 1948 | USA | 1.00 | 1 | 0.39 | 25 | 9.75 | | | Grey, Peter | | | 1966 | USA | 0.50 | 1 | -0.08 | 25 | -2.00 | |  Shakhnazarov, Oleg | | | 2183 | USA | 0.00 | 1 | -0.29 | 25 | -7.25 | |
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) | | | NOTE: K factor changed | | Winter Tuesday Night Marathon | San Francisco, California | USA | 2009-01-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2023 | 2043 | 1.00 | 2 | -0.05 | 15 | -0.75 | |
| | Persidsky, Andre | | | 1868 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Margulis, Igor | | | 2178 | USA | 0.00 | 1 | -0.32 | 15 | -4.80 | |
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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