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Individual Calculations November 2009 |
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| Cohen, Lawrence S Total change: -15.30 | |   |
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| 2009 Illinois Open Championship | Oak Brook, Illinois | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2100 | 2023 | 0.00 | 2 | -0.82 | 15 | -12.30 | |
|  Chow, Albert C | f | | 2254 | USA | 0.00 | 1 | -0.21 | 15 | -3.15 | |  Auger, Michael W | | | 1946 | USA | 0.00 | 1 | -0.61 | 15 | -9.15 | |
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) | | | | MCA FIDE Futurity VIII | Chicago, Illinois | USA | 2009-09-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1921 | 2023 | 5.50 | 9 | -0.20 | 15 | -3.00 | |
| | Wood, Christopher | | | 2030 | USA | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Dugovic, Daniel R | | | 2017 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | | | Parmet, Daniel E | | | 1928 | USA | 0.50 | 1 | -0.13 | 15 | -1.95 | | | Ulrich, Tommy | | | 2030 | USA | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Baumgartner, Chris | | | 1878 | USA | 0.50 | 1 | -0.19 | 15 | -2.85 | | | Blackman, William | | | 1855 | USA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Kosteris, Dimitri | | | 1840 | USA | 1.00 | 1 | 0.26 | 15 | 3.90 | | | Villarreal, Brian | | | 1818 | USA | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Britt, Jeff | | | 1895 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | |
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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