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Individual Calculations March 2015 |
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| Kamara, Abdul Total change: -1.60 | |   |
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| 2015 Airfficiency Year Opener - Open | Gaborone | BOT | 2015-01-31 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2021 | 1907 | 1.00 | 3 | -0.08 | 20 | -1.60 | |
|  Oatlhotse, Providence | m | | 2200 | BOT | 0.00 | 1 | -0.15 | 20 | -3.00 | |  Dziilani, Abel | | | 2018 | BOT | 0.50 | 1 | 0.15 | 20 | 3.00 | | | Simon, Bokamoso | | | 1846 | BOT | 0.50 | 1 | -0.08 | 20 | -1.60 | |
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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