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Individual Calculations July 2009 |
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| Orton Iii, William Total change: 21.75 | |   |
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| Phillips 66 Chess Classic | Owasso, Oklahoma | USA | 2009-03-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2033 | 2162 | 3.50 | 4 | 0.84 | 15 | 12.60 | |
|  Whitcomb, Bran | | | 2034 | USA | 1.00 | 1 | 0.33 | 15 | 4.95 | | | Wawrzaszek, Jason | | | 1911 | USA | 1.00 | 1 | 0.19 | 15 | 2.85 | |  Braunlich, Thomas | | | 2173 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Hughes, Devin L | | | 2013 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | |
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) | | | | 27th North American FIDE Open | Stillwater, Oklahoma | USA | 2009-05-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2096 | 2146 | 3.50 | 5 | 0.61 | 15 | 9.15 | |
| | Wright, Terry | | | 2023 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Berry, Jim | | | 2047 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | | | Gatica, Jose | | | 1915 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Brooks, Michael A | m | | 2463 | USA | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Crockett, J Mike | | | 2032 | USA | 1.00 | 1 | 0.34 | 15 | 5.10 | |
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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