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Individual Calculations January 2012 |
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| Poon, Yu Tien Total change: 64.95 | |   |
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| 2011 BOA Barbados National Chess Championships | Bridgetown | BAR | 2011-10-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1915 | 1873 | 6.00 | 11 | 0.94 | 15 | 14.10 | |
|  Howell, Shamel | c | | 2102 | BAR | 0.00 | 1 | -0.21 | 15 | -3.15 | |  Harewood, Othneil | | | 1916 | BAR | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Del Castilho, Martyn | f | | 2181 | BAR | 0.00 | 1 | -0.14 | 15 | -2.10 | | | Harewood, Jerome | | | 1727 | BAR | 0.50 | 1 | -0.20 | 15 | -3.00 | | | Lynch, Kemp | | | 1788 | BAR | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Daniel, Kelvin | | | 2005 | BAR | 0.00 | 1 | -0.32 | 15 | -4.80 | | | Warner, Delisle | f | | 2249 | BAR | 1.00 | 1 | 0.91 | 15 | 13.65 | | | Richards, Allon | | | 1701 | BAR | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Husbands, Orlando | | | 1855 | BAR | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Prescod, Bryan | | | 1760 | BAR | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Cox, Akeem | | | 1778 | BAR | 0.00 | 1 | -0.63 | 15 | -9.45 | |
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) | | | | 2011 Barbados Junior Nationals Under-16 | Bridgetown | BAR | 2011-10-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1761 | 1873 | 3.00 | 3 | 1.04 | 15 | 15.60 | |
| | Husbands, Orlando | | | 1855 | BAR | 1.00 | 1 | 0.47 | 15 | 7.05 | | | Harewood, Jerome | | | 1727 | BAR | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Richards, Allon | | | 1701 | BAR | 1.00 | 1 | 0.27 | 15 | 4.05 | |
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) | | | | 2011 Umada Cup - Challengers Section | Bridgetown | BAR | 2011-11-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1960 | 1890 | 5.50 | 8 | 2.24 | 15 | 33.60 | |
| | Singh, Ravishen | | | 2069 | TRI | 1.00 | 1 | 0.73 | 15 | 10.95 | | | Richards, Deborah | | wf | 2040 | JAM | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Ifill, Cleveston | | | 1934 | BAR | 1.00 | 1 | 0.56 | 15 | 8.40 | | | Meusa, Wendell | | | 1928 | BAR | 0.50 | 1 | 0.05 | 15 | 0.75 | | | Wiltshire, Esan | | | 1984 | TRI | 0.00 | 1 | -0.37 | 15 | -5.55 | | | Husbands, Orlando | | | 1877 | BAR | 1.00 | 1 | 0.48 | 15 | 7.20 | | | Khan, Taffin | | | 1802 | GUY | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Sanches, Romario | | | 2044 | SUR | 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) | | | | World Youth Chess Championship - U 12 Open | Caldas Novas/GO | BRA | 2011-11-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1838 | 1890 | 3.50 | 6 | 0.11 | 15 | 1.65 | |
| | Lorparizangeneh, Shahin | f | | 2175 | IRI | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Naranjo, Irwin | | | 1608 | ECU | 1.00 | 1 | 0.16 | 15 | 2.40 | | | Ieong, Seak Hin | | | 1634 | MAC | 1.00 | 1 | 0.19 | 15 | 2.85 | | | Sterck, Arno | | | 1826 | BEL | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Bravo Jaramillo, Alexander | | | 1755 | ECU | 1.00 | 1 | 0.32 | 15 | 4.80 | | | Schroeder, Kevin | | | 2030 | GER | 0.00 | 1 | -0.31 | 15 | -4.65 | |
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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