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Individual Calculations April 2009 |
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| Pinkerton, James C Total change: -28.80 | |   |
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| 4th Annual Empire State Open | Saratoga Springs, New York | USA | 2008-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2054 | 2059 | 1.50 | 3 | -0.02 | 15 | -0.30 | |
|  Enkin, Max | | | 2259 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | |  Tuhrim, Richard J | | | 2020 | USA | 0.00 | 1 | -0.55 | 15 | -8.25 | | | Finney, Stuart S | | | 1883 | USA | 1.00 | 1 | 0.27 | 15 | 4.05 | |
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) | | | | 41st Annual Liberty Bell Open | Philadelphia, Pennsylvania | USA | 2009-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2014 | 2078 | 2.00 | 4 | -0.35 | 15 | -5.25 | |
| | Yagiz, Bora | | | 1926 | USA | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Swaminathan, Rahul | | | 1998 | USA | 0.00 | 1 | -0.61 | 15 | -9.15 | | | Karell, Leif K | | | 2028 | USA | 1.00 | 1 | 0.43 | 15 | 6.45 | | | Guevara, Robert | | | 2103 | USA | 0.50 | 1 | 0.03 | 15 | 0.45 | |
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) | | | | 39th Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2184 | 2078 | 0.00 | 4 | -1.55 | 15 | -23.25 | |
| | Shmelov, Denys Kon | | | 2340 | UKR | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Freix, Andrew J | | | 1963 | USA | 0.00 | 1 | -0.66 | 15 | -9.90 | | | Hess, Robert L | m | | 2428 | USA | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Farber, Nelson M | | | 2003 | USA | 0.00 | 1 | -0.60 | 15 | -9.00 | |
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) | | |
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