Individual Calculations August 2021 |
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Jeffreys, Roger W Total change: -12.20 | | ![Rating chart](/imga/chart.gif) ![Personal card](/imga/card.gif) |
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2021 Ford-Greenwood Seniors Open | Sydney | AUS | 2021-05-25 |
Rc | Ro | w | n | change | K | K*chg | Game |
1569 | 1588 | 1.50 | 4 | -0.61 | 20 | -12.20 | |
| Armstrong, Gary | | | 1664 | AUS | 0.00 | 1 | -0.40 | 20 | -8.00 | | Aleksovski, Bosko | | | 1618 | AUS | 0.00 | 1 | -0.46 | 20 | -9.20 | | Greenwood, Norman | | | 1498 | AUS | 0.50 | 1 | -0.12 | 20 | -2.40 | | Munk, Leon | | | 1495 | AUS | 1.00 | 1 | 0.37 | 20 | 7.40 | | 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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