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Individual Calculations February 2019 |
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| Motlhware, Tshepang Total change: 15.40 | |   |
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| 2018 AFRICAN AMATEUR CHAMPIONSHIPS - Women's Section (U1700,U2000,2300 MERGED) | Windhoek | NAM | 2018-12-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1408 | 1246 | 3.50 | 8 | 0.99 | 20 | 19.80 | |
|  Ajayi, Ayokanmi | | | 1616 | NGR | 1.00 | 1 | 0.90 | 20 | 18.00 | |  Ndachipiwa, Kgomotso | | | 1561 | BOT | 0.00 | 1 | -0.14 | 20 | -2.80 | | | Tjaronda, Nicola | | wc | 1500 | NAM | 0.00 | 1 | -0.19 | 20 | -3.80 | | | Beukes, Jamie-Nicole | | wc | 1123 | NAM | 1.00 | 1 | 0.33 | 20 | 6.60 | | | Shipindo, Rauha | | | 1544 | NAM | 0.00 | 1 | -0.15 | 20 | -3.00 | | | Mpinganjira, Ellen | | | 1446 | MAW | 0.50 | 1 | 0.26 | 20 | 5.20 | | | Tsuses, Patience | | | 1090 | NAM | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Zeko, Rose | | wc | 1385 | ZAM | 0.00 | 1 | -0.31 | 20 | -6.20 | |
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 |
| 1598 | 1246 | 0.00 | 2 | -0.22 | 20 | -4.40 | |
| | Otisitswe, Ruth | | | 1629 | BOT | 0.00 | 1 | -0.09 | 20 | -1.80 | | | Ndachipiwa, Kgomotso | | | 1567 | BOT | 0.00 | 1 | -0.13 | 20 | -2.60 | |
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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