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Individual Calculations January 2010 |
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| Perez-Billinghurst, Ric Total change: 12.15 | |   |
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| 2nd Annual "What-A-Turkey" Open | New York, New York | USA | 2009-11-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2338 | 2132 | 1.00 | 2 | 0.44 | 15 | 6.60 | |
|  Lenderman, Alex | m | | 2532 * | USA | 0.00 | 1 | -0.08 | 15 | -1.20 | |  Privman, Boris | f | | 2144 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | * Rating difference of more than 400. Please read more at FIDE Handbook |
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) | | | | 40th Annual National Chess Congress | Philadelphia, Pennsylvania | USA | 2009-11-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2273 | 2132 | 1.00 | 2 | 0.37 | 15 | 5.55 | |
| | Figler, Ilye | f | | 2309 | USA | 0.50 | 1 | 0.23 | 15 | 3.45 | | | Barnett, Alexander | | | 2237 | USA | 0.50 | 1 | 0.14 | 15 | 2.10 | |
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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