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Individual Calculations March 2012 |
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| Lazarus, Barry J Total change: 9.30 | |   |
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| 21st Annual North American Open - U2300 Section | Las Vegas, Nevada | USA | 2011-12-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2072 | 1833 | 1.50 | 6 | 0.28 | 30 | 8.40 | |
|  Nita, Marian N | | | 2083 | USA | 0.00 | 1 | -0.19 | 30 | -5.70 | |  Gurczak, John | | | 2103 | USA | 0.50 | 1 | 0.33 | 30 | 9.90 | | | Ondangan Jr, Ruben | | | 2064 | USA | 0.00 | 1 | -0.21 | 30 | -6.30 | | | Williams, John M | | | 2094 | USA | 0.00 | 1 | -0.18 | 30 | -5.40 | | | Williams, John R | | | 2091 | USA | 1.00 | 1 | 0.82 | 30 | 24.60 | | | Iyengar, Udit | | | 1995 | USA | 0.00 | 1 | -0.29 | 30 | -8.70 | |
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 | | Martin Luther King Jr Memorial | Irvine, California | USA | 2012-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2064 | 1833 | 0.50 | 2 | 0.06 | 15 | 0.90 | |
| | Kudryavtsev, Vadim | | | 2151 | RUS | 0.00 | 1 | -0.13 | 15 | -1.95 | | | Hough, Randall D | | | 1977 | USA | 0.50 | 1 | 0.19 | 15 | 2.85 | |
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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