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Individual Calculations November 2009 |
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| Boor, Carl B Total change: -20.70 | |   |
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| 41st Annual Atlantic Open | Washington DC | USA | 2009-08-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2275 | 2350 | 1.00 | 3 | -0.72 | 15 | -10.80 | |
|  Dai, Yang | | | 2002 | USA | 1.00 | 1 | 0.11 | 15 | 1.65 | | | Lenderman, Alex | m | | 2504 | USA | 0.00 | 1 | -0.29 | 15 | -4.35 | |  Figler, Ilye | f | | 2318 | USA | 0.00 | 1 | -0.54 | 15 | -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) | | | | 65th Ohio Chess Congress | Dayton, Ohio | USA | 2009-09-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2111 | 2344 | 2.50 | 4 | -0.66 | 15 | -9.90 | |
| | Dowling, John | | | 2060 | USA | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Marsh, Matthew | | | 2115 | USA | 0.50 | 1 | -0.29 | 15 | -4.35 | | | Mikesell, Cory | | | 2074 | USA | 1.00 | 1 | 0.17 | 15 | 2.55 | | | Meekins, Kris | | | 2195 | USA | 0.00 | 1 | -0.70 | 15 | -10.50 | |
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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