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Individual Calculations April 2009 |
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| Yeager, Daniel A Total change: 35.55 | |   |
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| 35th Annual Eastern Open | Washington DC | USA | 2008-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2209 | 2328 | 4.50 | 6 | 0.54 | 15 | 8.10 | |
|  Most, Eric M | | | 2139 | USA | 1.00 | 1 | 0.25 | 15 | 3.75 | |  Reichstein, Boris | f | | 2180 | USA | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Andrews, Todd D | f | | 2331 | USA | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Studen, Damir | | | 2200 | USA | 0.50 | 1 | -0.17 | 15 | -2.55 | | | Mabe, Chris J | | | 2248 | USA | 1.00 | 1 | 0.39 | 15 | 5.85 | | | Samuelson, Andrew | | | 2154 | 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 |
| 2330 | 2336 | 1.50 | 3 | -0.02 | 15 | -0.30 | |
| | Hess, Robert L | m | | 2483 | USA | 0.00 | 1 | -0.30 | 15 | -4.50 | | | Kis, Lorand B | | | 2181 | USA | 1.00 | 1 | 0.29 | 15 | 4.35 | | | Zlotnikov, Mikhail | m | | 2327 | USA | 0.50 | 1 | -0.01 | 15 | -0.15 | |
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) | | | | 39th Annual World Amateur Team & US Team East | Parsippany, New Jersey | USA | 2009-02-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2278 | 2336 | 4.50 | 6 | 1.06 | 15 | 15.90 | |
| | Berg, George P | | | 2103 | USA | 1.00 | 1 | 0.21 | 15 | 3.15 | | | Hall, Timothy J | | | 2128 | USA | 1.00 | 1 | 0.23 | 15 | 3.45 | | | Riordan, Charles R | f | | 2280 | USA | 0.50 | 1 | -0.08 | 15 | -1.20 | | | Privman, Boris | f | | 2172 | USA | 0.50 | 1 | -0.22 | 15 | -3.30 | | | Schneider, Dmitry | m | | 2487 | USA | 1.00 | 1 | 0.70 | 15 | 10.50 | | | Charbonneau, Pasca | g | | 2500 | CAN | 0.50 | 1 | 0.22 | 15 | 3.30 | |
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 Virginia Open | McLean, Virginia | USA | 2009-02-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2300 | 2336 | 3.00 | 4 | 0.79 | 15 | 11.85 | |
| | Larkins, Larry R | | | 2170 | USA | 1.00 | 1 | 0.28 | 15 | 4.20 | | | Mc Kenna, Geoffrey | | | 2226 | USA | 0.50 | 1 | -0.15 | 15 | -2.25 | | | Shibut, Macon A | f | | 2263 | USA | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Perelshteyn, Eugene | g | | 2539 | USA | 0.50 | 1 | 0.26 | 15 | 3.90 | |
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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