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Individual Calculations September 2010 |
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| Williams, Justus D Total change: -44.75 | |   |
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| 38th Annual World Open - U2400 Section | King of Prussia, Pennsylvania | USA | 2010-06-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2238 | 2239 | 3.00 | 8 | -1.01 | 25 | -25.25 | |
|  Hilton, Jonathan L | | | 2270 | USA | 0.00 | 1 | -0.46 | 25 | -11.50 | |  Hughes, Tyler B | | | 2296 | USA | 0.00 | 1 | -0.42 | 25 | -10.50 | | | Ostrovskiy, Aleksandr | c | | 2254 | USA | 0.00 | 1 | -0.48 | 25 | -12.00 | | | Moon, Ryan Joseph | | | 2227 | USA | 1.00 | 1 | 0.48 | 25 | 12.00 | | | Barnett, Alexander | | | 2246 | USA | 1.00 | 1 | 0.51 | 25 | 12.75 | | | Rosenberg, Evan S | | | 2218 | USA | 0.00 | 1 | -0.53 | 25 | -13.25 | | | Ramer, Scott Leo | | | 2223 | USA | 0.00 | 1 | -0.52 | 25 | -13.00 | | | Yanayt, Eugene | f | | 2172 | USA | 1.00 | 1 | 0.41 | 25 | 10.25 | |
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 | | 15th Annual Bradley Open | Windsor Locks, Connecticut | USA | 2010-07-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2100 | 2200 | 1.00 | 1 | 0.36 | 15 | 5.40 | |
| | Tkach, Leonid | | | 2100 | USA | 1.00 | 1 | 0.36 | 15 | 5.40 | |
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 | | Festival Panamericano da Juventude 2010 - U 12 Open | Bento Goncalves - Rio Grande do Sul - BRA | BRA | 2010-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1975 | 2200 | 4.50 | 8 | -1.66 | 15 | -24.90 | |
| | Martinez Ramirez, Anthony | | | 1800 * | PER | 1.00 | 1 | 0.08 | 15 | 1.20 | | | Munoz, Francisco | c | | 1958 | ARG | 1.00 | 1 | 0.20 | 15 | 3.00 | | | Cori Quispe, Kevin | | | 2001 | PER | 1.00 | 1 | 0.24 | 15 | 3.60 | | | Pichot, Alan | f | | 2197 | ARG | 0.00 | 1 | -0.50 | 15 | -7.50 | | | Leon Magallanes, Isaac | | | 1905 | ECU | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Blandon, Luis Guillermo | | | 1994 | COL | 0.00 | 1 | -0.76 | 15 | -11.40 | | | Martinez Alcantara, Jose Eduardo | | | 1917 | PER | 0.50 | 1 | -0.34 | 15 | -5.10 | | | Acosta, Pablo Ismael | f | | 2029 | ARG | 0.00 | 1 | -0.73 | 15 | -10.95 | | | * 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) | | |
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