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Individual Calculations September 2009 |
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| Blackman, Justin Total change: 37.50 | |   |
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| Barbados Under-20 Junior Championships | Bridgetown | BAR | 2009-06-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1970 | 2074 | 2.00 | 2 | 0.78 | 15 | 11.70 | |
|  Del Castilho, Martyn | | | 2181 | BAR | 1.00 | 1 | 0.65 | 15 | 9.75 | |  Cox, Akeem | | | 1758 | BAR | 1.00 | 1 | 0.13 | 15 | 1.95 | |
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) | | | | XX Panamericano Mar del Plata U18 Abs | Mar del Plata | ARG | 2009-08-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2194 | 2074 | 4.50 | 8 | 1.72 | 15 | 25.80 | |
| | Terry, Renato | f | | 2385 | PER | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Sanchez Maya, Simon | | | 2203 | COL | 1.00 | 1 | 0.67 | 15 | 10.05 | | | Vera Siguenas, Deivy | | | 2255 | PER | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Saltos Velez, Adrian | | | 2150 | ECU | 1.00 | 1 | 0.60 | 15 | 9.00 | | | Almiron, Antonio | | | 2083 | PAR | 0.50 | 1 | 0.01 | 15 | 0.15 | | | Paveto, Kevin | | | 2154 | ARG | 0.00 | 1 | -0.39 | 15 | -5.85 | | | Aurelli Abdalla, Luiz Guilherme | | | 2089 | BRA | 1.00 | 1 | 0.52 | 15 | 7.80 | | | Dimuro, Matias | | | 2229 | ARG | 1.00 | 1 | 0.71 | 15 | 10.65 | |
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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