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Individual Calculations April 2008 |
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| Kaufman, Lawrence Total change: -4.80 | |   |
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| 2007 Arlington Chess Club Championship | Arlington, Virginia | USA | 2007-12-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2206 | 2380 | 2.50 | 3 | 0.39 | 10 | 3.90 | |
|  Shapiro, Jonathan | | | 2030 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Samuelson, Andrew | | | 2196 | USA | 1.00 | 1 | 0.26 | 10 | 2.60 | |  Smith, Bryan | m | | 2392 | USA | 0.50 | 1 | 0.02 | 10 | 0.20 | |
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) | | | | 34th Annual Eastern Open | Washington DC | USA | 2007-12-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2113 | 2380 | 2.50 | 5 | -1.60 | 10 | -16.00 | |
| | Thaler, Michael | | | 2086 | USA | 1.00 | 1 | 0.15 | 10 | 1.50 | | | Ishmukhamedov, Akhmet | | | 2105 | KAZ | 0.00 | 1 | -0.83 | 10 | -8.30 | | | Bryant, Todd C | | | 2030 | USA | 1.00 | 1 | 0.11 | 10 | 1.10 | | | Filipovich, David | | | 2217 | CAN | 0.50 | 1 | -0.22 | 10 | -2.20 | | | Lu, Edward J | | | 2128 | USA | 0.00 | 1 | -0.81 | 10 | -8.10 | |
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) | | | | 8th Annual Millenium Chess Festival | Virginia Beach, Virginia | USA | 2008-02-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2317 | 2370 | 3.00 | 4 | 0.73 | 10 | 7.30 | |
| | Szuper, Paul | | | 2105 | USA | 0.50 | 1 | -0.32 | 10 | -3.20 | | | Smith, Bryan G | m | | 2387 | USA | 1.00 | 1 | 0.52 | 10 | 5.20 | | | Francisco, Richard | | | 2198 | USA | 1.00 | 1 | 0.27 | 10 | 2.70 | | | Benjamin, Joel | g | | 2576 | USA | 0.50 | 1 | 0.26 | 10 | 2.60 | |
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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