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Individual Calculations March 2015 |
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| Wilken, Justin Total change: -21.20 | |   |
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| Piet Robbertse Open Chess Tournament 2015 | Pretoria | RSA | 2015-01-29 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1983 | 1991 | 1.50 | 5 | -1.06 | 20 | -21.20 | |
|  Sadie, Johan Jacobus Hendrik | | | 1692 | RSA | 1.00 | 1 | 0.15 | 20 | 3.00 | |  Makoto, Rodwell | m | | 2327 | ZIM | 0.00 | 1 | -0.12 | 20 | -2.40 | | | Solo, Muzenda | | | 1821 | RSA | 0.00 | 1 | -0.72 | 20 | -14.40 | | | Masungwini, Michael T | | | 1995 | RSA | 0.50 | 1 | 0.01 | 20 | 0.20 | | | Van Der Westhuizen, Willem | | | 2078 | RSA | 0.00 | 1 | -0.38 | 20 | -7.60 | |
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) | | |
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