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Individual Calculations September 2009 |
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| Inigo, Aquino Total change: 0.75 | |   |
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| 2nd Annual Chicago Class Championships | Oak Brook, Illinois | USA | 2009-07-17 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2074 | 1906 | 0.50 | 2 | -0.06 | 25 | -1.50 | |
|  Tuhrim, Richard J | | | 2042 | USA | 0.50 | 1 | 0.18 | 25 | 4.50 | |  Magness, Trevor S | | | 2105 | USA | 0.00 | 1 | -0.24 | 25 | -6.00 | |
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) | | | | 110th Annual US Open | Indianapolis, Indiana | USA | 2009-08-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1968 | 1906 | 0.50 | 1 | 0.09 | 25 | 2.25 | |
| | Lagemann, Nathaniel | | | 1968 | USA | 0.50 | 1 | 0.09 | 25 | 2.25 | |
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) | | |
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