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Individual Calculations July 2009 |
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| McDonald, John Total change: 6.75 | |   |
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| Auckland Chess Centre Weekender | Auckland | NZL | 2009-03-27 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2137 | 2073 | 2.00 | 3 | 0.74 | 15 | 11.10 | |
|  Browne, Jeremy | | | 2090 | NZL | 1.00 | 1 | 0.52 | 15 | 7.80 | |  Smith, Robert W | f | | 2281 | NZL | 0.50 | 1 | 0.27 | 15 | 4.05 | | | Lee, Edward | | | 2040 | AUS | 0.50 | 1 | -0.05 | 15 | -0.75 | |
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) | | | | North Island Championship | Wellington | NZL | 2009-04-10 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 2098 | 2073 | 3.00 | 7 | -0.29 | 15 | -4.35 | |
| | Steadman, Michael | | | 2262 | NZL | 0.00 | 1 | -0.25 | 15 | -3.75 | | | King, Mathew | | | 1965 | NZL | 1.00 | 1 | 0.35 | 15 | 5.25 | | | Goodhue, Nathan | | | 2002 | NZL | 1.00 | 1 | 0.40 | 15 | 6.00 | | | Zhang, Pengli (john) | | | 2157 | NZL | 1.00 | 1 | 0.62 | 15 | 9.30 | | | Dive, Russell John | m | | 2362 | NZL | 0.00 | 1 | -0.16 | 15 | -2.40 | | | Baider, Daniel | | | 2126 | NZL | 0.00 | 1 | -0.43 | 15 | -6.45 | | | Smith, Vivian J | | wf | 1809 | NZL | 0.00 | 1 | -0.82 | 15 | -12.30 | |
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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