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Individual Calculations September 2023 |
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| Koppenens, Oscar Total change: 20.80 | |   |
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| HZ University of Applied Sciences Chess Tournament 2023 | Vlissingen | NED | 2023-08-05 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1929 | 1683 | 1.00 | 7 | -0.46 | 40 | -18.40 | |
|  Wagenvoorde, Guido | | | 2104 | NED | 0.00 | 1 | -0.07 | 40 | -2.80 | | | Verwoert, Jef | | | 2023 | NED | 0.00 | 1 | -0.12 | 40 | -4.80 | |  De Cuyper, Yago | | | 1842 | BEL | 0.00 | 1 | -0.29 | 40 | -11.60 | | | Oosting, Robert | | | 1936 | NED | 0.50 | 1 | 0.31 | 40 | 12.40 | | | Kloppers, Eric | | | 1847 | NED | 0.50 | 1 | 0.22 | 40 | 8.80 | | | Nellen, Marcel | | | 1809 | NED | 0.00 | 1 | -0.33 | 40 | -13.20 | | | Verbeeren, Peter | | | 1940 | BEL | 0.00 | 1 | -0.18 | 40 | -7.20 | |
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) | | | | RSB Open 2023 | Rotterdam | NED | 2023-08-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1892 | 1683 | 2.00 | 4 | 0.98 | 40 | 39.20 | |
| | Torczynski, Peter | | | 1999 | NED | 0.00 | 1 | -0.13 | 40 | -5.20 | | | Woudt, Ismael | | | 1882 | NED | 1.00 | 1 | 0.76 | 40 | 30.40 | | | Lee, Jungbin | | | 1646 | NED | 1.00 | 1 | 0.45 | 40 | 18.00 | | | Ercan, Selman | | | 2041 | NED | 0.00 | 1 | -0.10 | 40 | -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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