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Individual Calculations October 2017 |
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| Blackwood, Ashanti Total change: -42.80 | |   |
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| XV Festival de Ajedrez Centroamericano y del Caribe Panama 2017 Girls U-16 | Ciudad Panama | PAN | 2017-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1592 | 1524 | 1.50 | 6 | -1.08 | 40 | -43.20 | |
|  Obregon Garcia, Roxangel | | wf | 1924 * | CUB | 0.00 | 1 | -0.08 | 40 | -3.20 | |  Samayoa Gomez, Maria Rene | | | 1553 | GUA | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Porter, Rochelle | | | 1436 | JAM | 0.00 | 1 | -0.62 | 40 | -24.80 | | | Yankana, Alliyah | | | 1427 | JAM | 0.50 | 1 | -0.13 | 40 | -5.20 | | | Cayon, Laura Valentina | | | 1715 | COL | 0.50 | 1 | 0.25 | 40 | 10.00 | | | Medina Murgado, Lien | | | 1498 | CUB | 0.50 | 1 | -0.04 | 40 | -1.60 | | | * 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) | | | | St. Jago Open 2017 [Open] | Spanish Town | JAM | 2017-09-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1612 | 1524 | 2.00 | 5 | 0.05 | 40 | 2.00 | |
| | Glaves, Raheem | | | 1827 | JAM | 0.00 | 1 | -0.14 | 40 | -5.60 | | | Walker, Lontae | | | 1552 | JAM | 0.00 | 1 | -0.46 | 40 | -18.40 | | | McKoy, Troy | | | 1553 | JAM | 0.00 | 1 | -0.46 | 40 | -18.40 | | | Hutchinson, Marlon | | | 1521 | JAM | 1.00 | 1 | 0.50 | 40 | 20.00 | | | Ellis, Rahjay | | | 1606 | JAM | 1.00 | 1 | 0.61 | 40 | 24.40 | |
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 |
| 1529 | 1524 | 1.50 | 3 | -0.04 | 40 | -1.60 | |
| | Diedrick, Michael | | | 1879 | JAM | 0.00 | 1 | -0.11 | 40 | -4.40 | | | Porter, Rochelle | | | 1436 | JAM | 0.50 | 1 | -0.12 | 40 | -4.80 | | | Brown, Raehanna | | | 1272 | JAM | 1.00 | 1 | 0.19 | 40 | 7.60 | |
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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