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Individual Calculations February 2023 |
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| Van Der Lubben, Arno Total change: -58.60 | |   |
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| Chessfestival Groningen 2022 Open B | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1724 | 1899 | 4.50 | 9 | -1.99 | 40 | -79.60 | |
|  Van Der Meer, Henk | | | 1762 | NED | 1.00 | 1 | 0.32 | 40 | 12.80 | |  Said, Omar | | | 1640 | NED | 0.00 | 1 | -0.82 | 40 | -32.80 | | | Goudriaan, Rafael | | | 1771 | NED | 0.50 | 1 | -0.17 | 40 | -6.80 | | | Kazarjan, Gachatur | | | 1759 | NED | 1.00 | 1 | 0.31 | 40 | 12.40 | | | Ritzerveld, Noah | | | 1515 | NED | 0.50 | 1 | -0.41 | 40 | -16.40 | | | Slikker, Willem | | | 1791 | NED | 0.50 | 1 | -0.15 | 40 | -6.00 | | | Broersma, Sven | | | 1757 | NED | 0.00 | 1 | -0.69 | 40 | -27.60 | | | Eefting, Martijn | | | 1753 | ENG | 0.00 | 1 | -0.70 | 40 | -28.00 | | | Ambrona Navarro, Himar | | | 1768 | ESP | 1.00 | 1 | 0.32 | 40 | 12.80 | |
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) | | | NOTE: K factor changed | | Tata Steel dagvierkampen 2023 | Wijk aan Zee | NED | 2023-01-16 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1941 | 1930 | 2.50 | 3 | 1.05 | 20 | 21.00 | |
| | Mulder, Piet | | | 1901 | NED | 1.00 | 1 | 0.46 | 20 | 9.20 | | | Krueger, Norbert | | | 1956 | GER | 0.50 | 1 | 0.04 | 20 | 0.80 | | | Moller, Werner | | | 1966 | NED | 1.00 | 1 | 0.55 | 20 | 11.00 | |
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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