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Individual Calculations June 2021 |
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| Black, Ross Total change: 25.80 | |   |
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| 2021 Arie Nijman Memorial | Christchurch | NZL | 2021-05-07 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1806 | 1666 | 3.00 | 5 | 1.29 | 20 | 25.80 | |
|  Cummings, Nick | | | 2037 | NZL | 0.00 | 1 | -0.10 | 20 | -2.00 | |  Gold, Hamish | | | 1676 | NZL | 1.00 | 1 | 0.51 | 20 | 10.20 | | | Clarkson, Robert | | | 1507 | NZL | 1.00 | 1 | 0.29 | 20 | 5.80 | | | Masters, Andrew | | | 1838 | SCO | 1.00 | 1 | 0.73 | 20 | 14.60 | | | Rains, Edward | c | | 1973 | NZL | 0.00 | 1 | -0.14 | 20 | -2.80 | |
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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