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Individual Calculations October 2008 |
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| Blackman, Justin Total change: 56.70 | |   |
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| Sub Zone 2.3.5 Championship | Merida | VEN | 2008-06-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2204 | 2001 | 3.50 | 9 | 1.22 | 15 | 18.30 | |
|  Del Castillo, Martyn | | | 2195 | BAR | 0.50 | 1 | 0.25 | 15 | 3.75 | |  Machin-Rivera, Mark | | | 2184 | PUR | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Joseph, Marcus | | | 2007 | TRI | 0.00 | 1 | -0.49 | 15 | -7.35 | | | Winter-Roach, Alex | | | 2056 | TRI | 1.00 | 1 | 0.58 | 15 | 8.70 | | | Harper, Ryan | f | | 2267 | TRI | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Bermudez Adams, William | | | 2183 | PUR | 1.00 | 1 | 0.74 | 15 | 11.10 | | | Prasca Sosa, Rafael | m | | 2351 | VEN | 0.00 | 1 | -0.11 | 15 | -1.65 | | | Boada, Wiston | | | 2239 | VEN | 1.00 | 1 | 0.80 | 15 | 12.00 | | | Soto Paez, Oliver | f | | 2351 | VEN | 0.00 | 1 | -0.11 | 15 | -1.65 | |
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) | | | | XIX Panam.Fest U18 Boys | Carlos Paz, Cordoba | ARG | 2008-06-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2089 | 2001 | 2.50 | 6 | 0.17 | 15 | 2.55 | |
| | Calcina Amezquita, Gary | | | 2182 | PER | 0.00 | 1 | -0.26 | 15 | -3.90 | | | Morales Garcia, Sergio Joshafat | | | 2265 | MEX | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Lino Lopez, Israel | | | 2146 | MEX | 0.50 | 1 | 0.19 | 15 | 2.85 | | | Gonzalez Chavez, Emmanuel | c | | 2127 | MEX | 0.00 | 1 | -0.33 | 15 | -4.95 | | | Llacsahuanga Lama, Diego Alonso | | | 1825 | PER | 1.00 | 1 | 0.27 | 15 | 4.05 | | | Ceron, Edgar Ivan | | | 1987 | COL | 1.00 | 1 | 0.48 | 15 | 7.20 | |
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) | | | | 2nd Qualifier Barbados National Championships | Bridgetown | BAR | 2008-07-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2072 | 2001 | 2.50 | 4 | 0.84 | 15 | 12.60 | |
| | Headley, Daryl | | | 1705 | BAR | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Howell, Shamel | | | 2020 | BAR | 1.00 | 1 | 0.53 | 15 | 7.95 | | | Denny, Kevin | m | | 2341 | BAR | 0.00 | 1 | -0.12 | 15 | -1.80 | | | Warner, Delisle | f | | 2220 | BAR | 0.50 | 1 | 0.28 | 15 | 4.20 | |
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) | | | | Caribbean Chess Carnival 2008 - Open | Port of Spain | TRI | 2008-08-06 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2120 | 2001 | 2.50 | 6 | 0.34 | 15 | 5.10 | |
| | Gill, Joseph | | | 1912 | TRI | 0.50 | 1 | -0.12 | 15 | -1.80 | | | Harper, Ryan | f | | 2268 | TRI | 0.00 | 1 | -0.18 | 15 | -2.70 | | | Herrera, German | | | 2046 | VEN | 0.00 | 1 | -0.44 | 15 | -6.60 | | | Lee, Cecil | | | 2001 | TRI | 1.00 | 1 | 0.50 | 15 | 7.50 | | | Matoewi, Roger | c | | 2149 | SUR | 0.50 | 1 | 0.20 | 15 | 3.00 | | | Denny, Kevin | m | | 2341 | BAR | 0.50 | 1 | 0.38 | 15 | 5.70 | |
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) | | | | Sagicor Open Junior | Bridgetown | BAR | 2008-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1943 | 2001 | 3.50 | 4 | 1.21 | 15 | 18.15 | |
| | Cox, Akeem | | | 1733 | BAR | 1.00 | 1 | 0.17 | 15 | 2.55 | | | James, Stuart | | | 1956 | JAM | 1.00 | 1 | 0.44 | 15 | 6.60 | | | Del Castilho, Martyn | | | 2195 | BAR | 1.00 | 1 | 0.75 | 15 | 11.25 | | | Meusa, Wendell | | | 1888 | BAR | 0.50 | 1 | -0.15 | 15 | -2.25 | |
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) | | |
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