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Individual Calculations April 2009 |
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| Duneas, John Total change: 63.75 | |   |
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| North Island Championship | Hamilton | NZL | 2008-07-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2052 | 2068 | 4.50 | 7 | 0.83 | 25 | 20.75 | |
|  Smith, Vivian J | | wc | 1857 | NZL | 1.00 | 1 | 0.23 | 25 | 5.75 | |  Milligan, Helen | | wf | 1976 | NZL | 1.00 | 1 | 0.37 | 25 | 9.25 | | | Thornton, Giovanni Antonio | | | 2126 | NZL | 0.00 | 1 | -0.42 | 25 | -10.50 | | | Stuart, Peter | | | 2097 | NZL | 0.50 | 1 | 0.04 | 25 | 1.00 | | | Eade, Don | | | 1936 | NZL | 1.00 | 1 | 0.32 | 25 | 8.00 | | | Ker, Anthony F | m | | 2328 | NZL | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Bennett, Hilton | | | 2043 | NZL | 1.00 | 1 | 0.47 | 25 | 11.75 | |
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) | | | | Waikato Open 2008 | Hamilton | NZL | 2008-08-08 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2184 | 2068 | 1.50 | 4 | 0.09 | 25 | 2.25 | |
| | Steadman, Michael | | | 2226 | NZL | 0.50 | 1 | 0.21 | 25 | 5.25 | | | Smith, Robert W | f | | 2316 | NZL | 0.50 | 1 | 0.31 | 25 | 7.75 | | | Spain, Graeme | | | 2218 | NZL | 0.00 | 1 | -0.30 | 25 | -7.50 | | | Tanoi, Toleafoa E | | | 1975 | NZL | 0.50 | 1 | -0.13 | 25 | -3.25 | |
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) | | | | 2009 Queenstown Chess Classic incorp 116th NZL Championship | Queenstown | NZL | 2009-01-15 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2287 | 2075 | 3.50 | 8 | 1.63 | 25 | 40.75 | |
| | Croad, Nicolas | f | | 2305 | NZL | 0.00 | 1 | -0.21 | 25 | -5.25 | | | Corke, Anya | | wg | 2260 | HKG | 1.00 | 1 | 0.74 | 25 | 18.50 | | | Smith, Robert W | f | | 2281 | NZL | 0.50 | 1 | 0.26 | 25 | 6.50 | | | Wohl, Aleksandar H. | m | | 2342 | AUS | 0.00 | 1 | -0.18 | 25 | -4.50 | | | Van Riemsdijk, Herman C. | m | | 2393 | BRA | 0.50 | 1 | 0.37 | 25 | 9.25 | | | Lukey, Stephen G | f | | 2247 | NZL | 0.50 | 1 | 0.23 | 25 | 5.75 | | | Smokina, Karolina | | wg | 2250 | MDA | 1.00 | 1 | 0.73 | 25 | 18.25 | | | Stojic, Dusan | | | 2219 | AUS | 0.00 | 1 | -0.31 | 25 | -7.75 | |
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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