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Individual Calculations February 2019 |
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| Banda, Natalie Katlo Total change: 80.00 | |   |
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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 |
| 1249 | 1349 | 3.50 | 4 | 0.98 | 40 | 39.20 | |
|  Lekoko, Rorisang | | | 1186 | BOT | 1.00 | 1 | 0.28 | 40 | 11.20 | | | Mosweu, Atang | | wc | 1418 | BOT | 0.50 | 1 | 0.10 | 40 | 4.00 | |  Kgano, Othusitse | | | 1246 | BOT | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Moshoboro, Arona | | wc | 1145 | BOT | 1.00 | 1 | 0.24 | 40 | 9.60 | |
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) | | | | AIRFFICIENCY YEAR OPENER 2019-ladies | Gaborone | BOT | 2019-01-26 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1433 | 1349 | 3.00 | 5 | 1.02 | 40 | 40.80 | |
| | Ndachipiwa, Kgomotso | | | 1567 | BOT | 0.50 | 1 | 0.28 | 40 | 11.20 | | | Dusani, Segolame | | | 1421 | BOT | 0.50 | 1 | 0.10 | 40 | 4.00 | | | Otisitswe, Ruth | | | 1629 | BOT | 0.00 | 1 | -0.16 | 40 | -6.40 | | | Badisang, Loago | | | 1246 | BOT | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Bonno, Thandi | | | 1303 | BOT | 1.00 | 1 | 0.44 | 40 | 17.60 | |
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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