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Individual Calculations February 2018 |
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| Byfield, Geoffrey Total change: -10.20 | |   |
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| John Powell Memorial 2018 [Open] | Kingston, Jamaica | JAM | 2018-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1923 | 2016 | 2.50 | 5 | -0.51 | 20 | -10.20 | |
|  Myers, Peter | | | 1935 | JAM | 1.00 | 1 | 0.39 | 20 | 7.80 | |  Curriah, Malik | | | 2018 | JAM | 0.50 | 1 | 0.00 | 20 | 0.00 | | | Smith, Shreyas | | | 2199 | JAM | 0.00 | 1 | -0.26 | 20 | -5.20 | | | McKoy, Troy | | | 1616 * | JAM | 1.00 | 1 | 0.08 | 20 | 1.60 | | | Christie, Michael | | | 1846 | JAM | 0.00 | 1 | -0.72 | 20 | -14.40 | | | * 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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