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Individual Calculations February 2016 |
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| Obioma, Onuoha Total change: -143.60 | |   |
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| 38TH NIGERIAN BREWERIES PLC INTERNATIONAL OPEN CHESS CHAMPIONSHIPS MASTERS SECTION | LAGOS | NGR | 2015-11-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2042 | 2165 | 2.50 | 6 | -1.49 | 40 | -59.60 | |
|  Kyosu, Joseph Augustine | | | 2014 | NGR | 0.00 | 1 | -0.70 | 40 | -28.00 | |  Uwe, Okpo | | | 2010 | NGR | 1.00 | 1 | 0.29 | 40 | 11.60 | | | Dennis, Ogbogho | | | 2075 | NGR | 0.00 | 1 | -0.62 | 40 | -24.80 | | | Kigigha, Inimo | | | 2044 | NGR | 0.50 | 1 | -0.16 | 40 | -6.40 | | | Abdulkadir, Umar | | | 2077 | NGR | 0.00 | 1 | -0.62 | 40 | -24.80 | | | Ezejiofor, Maduabuchi | | | 2029 | NGR | 1.00 | 1 | 0.32 | 40 | 12.80 | |
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) | | | | 38TH NIGERIAN BREWERIES INTERNATIONAL OPEN CHESS CHAMPIONSHIPS WEEKENDER SECTION | LAGOS | NGR | 2015-11-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2038 | 2165 | 1.00 | 3 | -1.01 | 40 | -40.40 | |
| | David , Erhabor | | | 2062 | NGR | 0.00 | 1 | -0.64 | 40 | -25.60 | | | Dasaolu, Rotimi | | | 2060 | NGR | 1.00 | 1 | 0.36 | 40 | 14.40 | | | Yinka, Adewole | | | 1992 | NGR | 0.00 | 1 | -0.73 | 40 | -29.20 | |
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) | | | | 1ST SOUTH WEST OPEN CHESS CHAMPIONSHIPS | Ibadan | NGR | 2015-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1931 | 2165 | 0.50 | 2 | -1.09 | 40 | -43.60 | |
| | Crim, ,joma | | | 1955 | NGR | 0.00 | 1 | -0.77 | 40 | -30.80 | | | Igubor, Micah | | | 1906 | NGR | 0.50 | 1 | -0.32 | 40 | -12.80 | |
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) | | |
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