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Individual Calculations February 2019 |
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| La Fleur, Zara Total change: 61.60 | |   |
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| National Youth Under 14 Female 2019 | Couva | TTO | 2019-01-03 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1199 | 1319 | 2.00 | 2 | 0.69 | 40 | 27.60 | |
|  Johnson, Chaya | | | 1108 | TTO | 1.00 | 1 | 0.23 | 40 | 9.20 | |  Martin, Athena | | | 1290 | TTO | 1.00 | 1 | 0.46 | 40 | 18.40 | |
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) | | | | National Juniors Under 20 Female 2019 | Chaguanas | TTO | 2019-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1402 | 1319 | 3.00 | 5 | 0.85 | 40 | 34.00 | |
| | Johnson, Gabriella | | wm | 1719 * | TTO | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Saha, Anusha | | | 1358 | TTO | 1.00 | 1 | 0.55 | 40 | 22.00 | | | Johnson, Chaya | | | 1108 | TTO | 1.00 | 1 | 0.23 | 40 | 9.20 | | | Johnson, Gabriella | | wm | 1719 * | TTO | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Johnson, Chaya | | | 1108 | TTO | 1.00 | 1 | 0.23 | 40 | 9.20 | | | * 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) | | |
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