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Individual Calculations September 2012 |
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| Chang, Jeffrey E Total change: 15.00 | |   |
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| 2012 Barber K - 8 Championship | Vancouver, Washington | USA | 2012-08-04 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2061 | 1954 | 1.50 | 3 | 0.44 | 30 | 13.20 | |
|  Chandran, Kapil | | | 2108 | USA | 0.50 | 1 | 0.21 | 30 | 6.30 | | | Iyengar, Udit | | | 1991 | USA | 1.00 | 1 | 0.55 | 30 | 16.50 | |  Feng, Roland | | | 2085 | USA | 0.00 | 1 | -0.32 | 30 | -9.60 | |
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) | | | NOTE: K factor changed | | 44th Annual Atlantic Open | Washington DC | USA | 2012-08-24 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1999 | 1954 | 1.00 | 2 | 0.12 | 15 | 1.80 | |
| | Strenzwilk, Denis F | | | 1968 | USA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Barsky, Sam | | | 2030 | USA | 0.00 | 1 | -0.40 | 15 | -6.00 | |
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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