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Individual Calculations May 2015 |
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| Milligan, Helen Total change: 4.00 | |   |
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| Oceania Seniors Chess Championship 2015 | Auckland | NZL | 2015-04-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1932 | 1978 | 3.00 | 5 | 0.20 | 20 | 4.00 | |
|  Cooper, Nigel | | | 1724 | NZL | 1.00 | 1 | 0.19 | 20 | 3.80 | | | Garbett, Paul A | m | | 2255 | NZL | 0.00 | 1 | -0.17 | 20 | -3.40 | |  Gibbons, Robert E | | | 1992 | NZL | 0.50 | 1 | 0.02 | 20 | 0.40 | | | Bennett, Hilton P | c | | 1944 | NZL | 0.50 | 1 | -0.05 | 20 | -1.00 | | | Smith, Vivian J | | wf | 1743 | NZL | 1.00 | 1 | 0.21 | 20 | 4.20 | |
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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