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Individual Calculations October 2018 |
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| Mapini, Otsile Total change: 3.80 | |   |
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| Sua Open International 2018 | Sua Town | BOT | 2018-09-01 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2024 | 2007 | 3.00 | 5 | 0.56 | 20 | 11.20 | |
|  Lesole, Pudungwane | | | 1911 | BOT | 1.00 | 1 | 0.37 | 20 | 7.40 | | | Luanja, Geoffrey | | | 2304 | ZAM | 0.00 | 1 | -0.15 | 20 | -3.00 | |  Albert, Maketo | | | 1892 | ZIM | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Hamilton, Mandeya | | | 1893 | ZIM | 1.00 | 1 | 0.34 | 20 | 6.80 | | | Masango, Spencer | | | 2122 | ZIM | 0.00 | 1 | -0.34 | 20 | -6.80 | |
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) | | | | 2018 North Botswana Open Chess Extravaganza | Palapye | BOT | 2018-09-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1903 | 2007 | 2.00 | 4 | -0.37 | 20 | -7.40 | |
| | Olebile, Thato | f | | 2132 | BOT | 0.00 | 1 | -0.33 | 20 | -6.60 | | | Makwaeba, Keabetswe | | | 1619 | BOT | 1.00 | 1 | 0.09 | 20 | 1.80 | | | Oatlhotse, Providence | m | | 2206 | BOT | 0.00 | 1 | -0.24 | 20 | -4.80 | | | Banda, Davies | | | 1656 | BOT | 1.00 | 1 | 0.11 | 20 | 2.20 | |
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) | | |
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