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Individual Calculations October 2017 |
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| James, Stuart Total change: -12.20 | |   |
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| St. Jago Open 2017 [Open] | Spanish Town | JAM | 2017-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1818 | 1998 | 1.50 | 3 | -0.56 | 20 | -11.20 | |
|  Belinfante, Nathan | | | 1667 | JAM | 0.50 | 1 | -0.38 | 20 | -7.60 | |  Morgan, Tajae | | | 1618 | JAM | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Davy, Damion | f | | 2169 | JAM | 0.00 | 1 | -0.27 | 20 | -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) | | | | Harold Chan Open 2017 | Kingston | JAM | 2017-09-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1798 | 1998 | 3.50 | 5 | -0.05 | 20 | -1.00 | |
| | Richards, Shaheem | | | 1598 * | JAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Rampair, Aidan | | | 1598 * | JAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Lorne, Malaku | f | | 2143 | JAM | 0.00 | 1 | -0.31 | 20 | -6.20 | | | Belinfante, Nathan | | | 1667 | JAM | 1.00 | 1 | 0.12 | 20 | 2.40 | | | Christie, Joshua | | | 1982 | JAM | 0.50 | 1 | -0.02 | 20 | -0.40 | | | * 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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