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Individual Calculations September 2019 |
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| Ishii, Ichiro Total change: -6.20 | |   |
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| Japan Seniors Chess Championship 2019 | Tokyo, Japan | JPN | 2019-08-02 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1820 | 1904 | 1.50 | 3 | -0.31 | 20 | -6.20 | |
|  Tabata, Minoru | | | 2076 | JPN | 0.00 | 1 | -0.27 | 20 | -5.40 | |  Koyama, Nobuyuki | | | 1724 | JPN | 0.50 | 1 | -0.24 | 20 | -4.80 | | | Numata, Takeshi | | | 1659 | JPN | 1.00 | 1 | 0.20 | 20 | 4.00 | |
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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