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Individual Calculations September 2015 |
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| Parsons, Justin Total change: 129.40 | |   |
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| 2015 Barbados Under 20 Open Junior Championship | Bridgetown | BAR | 2015-07-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1537 | 1472 | 4.50 | 6 | 1.87 | 20 | 37.40 | |
|  Rochester, Ronaldo | | | 1459 | BAR | 1.00 | 1 | 0.48 | 20 | 9.60 | |  Cumberbatch, Gabriela | | | 1361 | BAR | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Mahtani, Nitin | | | 1437 | BAR | 1.00 | 1 | 0.45 | 20 | 9.00 | | | Prescod, Bryan | | | 1872 * | BAR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Edwards, Emar | | | 1372 | BAR | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Harewood, Jakeel | | | 1718 | BAR | 0.50 | 1 | 0.31 | 20 | 6.20 | | | * 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) | | | | 2nd Qualifier 2015 Barbados National Chess Championships | Bridgetown | BAR | 2015-07-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1607 | 1472 | 4.00 | 6 | 1.88 | 20 | 37.60 | |
| | Husbands, Orlando | f | | 1872 * | BAR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Blackman, Katrina | | wc | 1632 | BAR | 0.00 | 1 | -0.29 | 20 | -5.80 | | | Murray, Donna | | | 1441 | BAR | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Nurse, Lydia | | wc | 1234 | BAR | 1.00 | 1 | 0.20 | 20 | 4.00 | | | Lowe, Mark | | | 1595 | BAR | 1.00 | 1 | 0.67 | 20 | 13.40 | | | Harewood, Jerome | | | 1869 | BAR | 1.00 | 1 | 0.92 | 20 | 18.40 | | | * 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) | | | | Caribbean Chess Carnival 2015 Under 20 | Port of Spain | TTO | 2015-08-09 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1687 | 1472 | 4.50 | 7 | 2.72 | 20 | 54.40 | |
| | Smith, Shreyas | | | 1872 * | JAM | 0.50 | 1 | 0.42 | 20 | 8.40 | | | Issa, Elias | | | 1566 | JAM | 1.00 | 1 | 0.63 | 20 | 12.60 | | | Johnson, Gabriella | | wc | 1658 | TTO | 0.00 | 1 | -0.26 | 20 | -5.20 | | | Husbands, Orlando | f | | 1872 * | BAR | 0.00 | 1 | -0.08 | 20 | -1.60 | | | Cumberbatch, Gabriela | | | 1361 | BAR | 1.00 | 1 | 0.35 | 20 | 7.00 | | | Smith, Javanna | | wf | 1775 | TTO | 1.00 | 1 | 0.86 | 20 | 17.20 | | | Ramdath, Simon | | | 1708 | TTO | 1.00 | 1 | 0.80 | 20 | 16.00 | | | * 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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