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Individual Calculations March 2011 |
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| Oatlhotse , Providence Total change: 6.30 | |   |
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| BOTSWANA OPEN 2010 | GABORONE | BOT | 2010-12-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1992 | 2226 | 2.00 | 3 | -0.32 | 15 | -4.80 | |
|  Tlhwaafalo, Gofaone | | | 1866 | BOT | 1.00 | 1 | 0.10 | 15 | 1.50 | | | Gaealafshwe, Barileng | c | | 2161 | BOT | 0.50 | 1 | -0.09 | 15 | -1.35 | |  Kokome, Oaitse | c | | 1950 | BOT | 0.50 | 1 | -0.33 | 15 | -4.95 | |
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 2011 | Gaborone | BOT | 2011-01-28 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2106 | 2226 | 4.00 | 5 | 0.74 | 15 | 11.10 | |
| | Kamara, Abdul | | | 1930 | BOT | 1.00 | 1 | 0.15 | 15 | 2.25 | | | Salani, Polite | | | 2077 | BOT | 1.00 | 1 | 0.30 | 15 | 4.50 | | | Kheto, Phemelo | f | | 2235 | BOT | 1.00 | 1 | 0.51 | 15 | 7.65 | | | Gaelafshwe, Barileng | c | | 2161 | BOT | 0.50 | 1 | -0.09 | 15 | -1.35 | | | Jona, Chaka | | | 2128 | ZIM | 0.50 | 1 | -0.13 | 15 | -1.95 | |
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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