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Individual Calculations February 2016 |
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| David, Erhabor Total change: 41.80 | |   |
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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 |
| 2159 | 2062 | 2.50 | 7 | -0.07 | 40 | -2.80 | |
|  Balogun, Oluwafemi | c | | 2217 | NGR | 0.50 | 1 | 0.21 | 40 | 8.40 | |  Oragwu, Chukwunonso | c | | 2254 | NGR | 1.00 | 1 | 0.75 | 40 | 30.00 | | | Oluwalasinu , Lanre Seye | | | 2193 | NGR | 0.00 | 1 | -0.32 | 40 | -12.80 | | | Fawole, John Oyeyemi | c | | 2126 | NGR | 1.00 | 1 | 0.59 | 40 | 23.60 | | | Ajele, Rotimi | | | 2163 | NGR | 0.00 | 1 | -0.36 | 40 | -14.40 | | | Eyenghe, Sunny | | | 2109 | NGR | 0.00 | 1 | -0.43 | 40 | -17.20 | | | Dooterna, Shaapera | | | 2054 | NGR | 0.00 | 1 | -0.51 | 40 | -20.40 | |
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) | | | NOTE: K factor changed | | 38TH NIGERIAN BREWERIES INTERNATIONAL OPEN CHESS CHAMPIONSHIPS WEEKENDER SECTION | LAGOS | NGR | 2015-11-13 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1971 | 2062 | 3.00 | 4 | 0.52 | 20 | 10.40 | |
| | Obioma, Onuoha | | | 2165 | NGR | 1.00 | 1 | 0.64 | 20 | 12.80 | | | Ekpiken, Magnus | | | 1915 | NGR | 1.00 | 1 | 0.30 | 20 | 6.00 | | | Dennis, Daramola | | | 1962 | NGR | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Olufemi, George | | | 1840 | NGR | 0.00 | 1 | -0.78 | 20 | -15.60 | |
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) | | | NOTE: K factor changed | | 1ST SOUTH WEST OPEN CHESS CHAMPIONSHIPS | Ibadan | NGR | 2015-12-11 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1867 | 2062 | 1.00 | 1 | 0.25 | 20 | 5.00 | |
| | Cole, Michael Christopher | | | 1867 | NGR | 1.00 | 1 | 0.25 | 20 | 5.00 | |
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) | | | NOTE: K factor changed | | 3RD BENIN CHESS TOURNAMENT | BENIN-CITY | NGR | 2015-12-23 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2152 | 2062 | 3.00 | 4 | 1.46 | 20 | 29.20 | |
| | Kigigha, Bomo | c | | 2305 | NGR | 0.00 | 1 | -0.20 | 20 | -4.00 | | | Obanuta, David Ovie | | | 2081 | NGR | 1.00 | 1 | 0.53 | 20 | 10.60 | | | Okonkwo, Ifeanyi | | | 2006 | NGR | 1.00 | 1 | 0.42 | 20 | 8.40 | | | Balogun, Oluwafemi | c | | 2217 | NGR | 1.00 | 1 | 0.71 | 20 | 14.20 | |
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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