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Individual Calculations February 2019 |
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| Lekoko, Rorisang Total change: 93.60 | |   |
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| 2018 Botswana International Junior Open Chess Championships_ U11 Girls | Gaborone | BOT | 2018-11-30 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1290 | 1186 | 1.00 | 4 | -0.47 | 40 | -18.80 | |
|  Banda, Natalie Katlo | | wc | 1349 | BOT | 0.00 | 1 | -0.28 | 40 | -11.20 | |  Moshoboro, Arona | | wc | 1145 | BOT | 1.00 | 1 | 0.44 | 40 | 17.60 | | | Mosweu, Atang | | wc | 1418 | BOT | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Kgano, Othusitse | | | 1246 | BOT | 0.00 | 1 | -0.42 | 40 | -16.80 | |
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) | | | | AIRFFICIENCY YEAR OPENER 2019-ladies | Gaborone | BOT | 2019-01-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1538 | 1186 | 3.50 | 6 | 2.81 | 40 | 112.40 | |
| | Tamuhla, Londani | | wf | 1586 * | BOT | 0.00 | 1 | -0.08 | 40 | -3.20 | | | Sabure, Tuduetso | | wg | 1586 * | BOT | 1.00 | 1 | 0.92 | 40 | 36.80 | | | Ndachipiwa, Kgomotso | | | 1567 | BOT | 1.00 | 1 | 0.91 | 40 | 36.40 | | | Dusani, Segolame | | | 1421 | BOT | 0.00 | 1 | -0.21 | 40 | -8.40 | | | Rebatenne, Boitshepo | | | 1526 | BOT | 1.00 | 1 | 0.88 | 40 | 35.20 | | | Gabatshwarwe, Refilwe | | wc | 1541 | BOT | 0.50 | 1 | 0.39 | 40 | 15.60 | | | * 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) | | |
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