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Individual Calculations October 2017 |
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| Nash, De Mario Total change: -10.40 | |   |
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| St. Jago Open 2017 [Open] | Spanish Town | JAM | 2017-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1810 | 1680 | 2.50 | 5 | 0.79 | 40 | 31.60 | |
|  Brown, Akeem | | | 2044 | JAM | 0.50 | 1 | 0.40 | 40 | 16.00 | |  Edwards, Dujean | | | 1687 | JAM | 0.50 | 1 | 0.01 | 40 | 0.40 | | | Cunningham, Jamie | | | 1744 | JAM | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Smith, Annesha | | wc | 1748 | JAM | 0.50 | 1 | 0.09 | 40 | 3.60 | | | Glaves, Raheem | | | 1827 | JAM | 0.00 | 1 | -0.30 | 40 | -12.00 | |
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 |
| 1676 | 1680 | 0.50 | 3 | -1.05 | 40 | -42.00 | |
| | Richards, Deborah | | wm | 2027 | JAM | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Ellis, Rahjay | | | 1606 | JAM | 0.50 | 1 | -0.10 | 40 | -4.00 | | | Robinson, Kishane | | | 1395 | JAM | 0.00 | 1 | -0.84 | 40 | -33.60 | |
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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