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Individual Calculations November 2009 |
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| Magness, Trevor S Total change: 1.05 | |   |
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| 2009 Illinois Open Championship | Oak Brook, Illinois | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2154 | 2108 | 1.00 | 2 | 0.08 | 15 | 1.20 | |
|  Baumgartner, Chris | | | 1878 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Felecan, Florin | f | | 2429 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | |
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) | | | | 18th Annual Midwest Class Champinships | Wheeling, Illinois | USA | 2009-10-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2265 | 2108 | 1.50 | 5 | -0.01 | 15 | -0.15 | |
|  Spiridonski, Michal J | | | 2275 | POL | 0.50 | 1 | 0.22 | 15 | 3.30 | | | Homa, Seth | | | 2283 | USA | 0.00 | 1 | -0.27 | 15 | -4.05 | | | Gurczak, John | | | 2086 | USA | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Felecan, Florin | f | | 2429 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Chow, Albert C | f | | 2254 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | |
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) | | |
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