Individual Calculations August 2023 |
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Koopman, Jan Total change: -9.80 | | ![Rating chart](/imga/chart.gif) ![Personal card](/imga/card.gif) |
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Amsterdam Science Park Chess Tournament 2023 - Group B | Amsterdam | NED | 2023-07-15 |
Rc | Ro | w | n | change | K | K*chg | Game |
1715 | 1607 | 2.00 | 7 | -0.49 | 20 | -9.80 | |
| Schiebroek, Luc | | | 1769 | NED | 0.00 | 1 | -0.29 | 20 | -5.80 | | Held, Jesper | | | 1701 | NED | 1.00 | 1 | 0.63 | 20 | 12.60 | | Skalski, Sebastian | | | 1766 | ENG | 1.00 | 1 | 0.71 | 20 | 14.20 | | Thijssen, Freek | | | 1709 | NED | 0.00 | 1 | -0.36 | 20 | -7.20 | | Veldhuysen, Klaas | | | 1772 | NED | 0.00 | 1 | -0.28 | 20 | -5.60 | | Oudejans, Martin | | | 1635 | NED | 0.00 | 1 | -0.46 | 20 | -9.20 | | Lith, Tony | | | 1652 | NED | 0.00 | 1 | -0.44 | 20 | -8.80 | | 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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