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Individual Calculations February 2023 |
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| Boeren, Jurriaan Total change: 78.66 | |   |
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| Chessfestival Groningen 2022 Open B | Groningen | NED | 2022-12-21 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1837 | 1923 | 6.50 | 9 | 1.08 | 38 | 41.04 | |
|  Abma, Klaas | | | 1794 | NED | 0.50 | 1 | -0.17 | 38 | -6.46 | |  Ambrona Navarro, Himar | | | 1768 | ESP | 1.00 | 1 | 0.29 | 38 | 11.02 | | | Eefting, Martijn | | | 1753 | ENG | 1.00 | 1 | 0.28 | 38 | 10.64 | | | Mohtaat, Homayoun | | | 1869 | AFG | 1.00 | 1 | 0.42 | 38 | 15.96 | | | Jelic, Bruno | | | 2039 | NED | 1.00 | 1 | 0.66 | 38 | 25.08 | | | Bakija, Alan | | | 1898 | NED | 0.00 | 1 | -0.53 | 38 | -20.14 | | | Gortemaker, Lucas | | | 1975 | NED | 0.50 | 1 | 0.07 | 38 | 2.66 | | | Kryvenko, Daryna | | | 1522 | UKR | 1.00 | 1 | 0.08 | 38 | 3.04 | | | Arnold, Rhys | | | 1912 | NED | 0.50 | 1 | -0.02 | 38 | -0.76 | |
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) | | | | Tata Steel Tienkampen 2023 | Wijk aan Zee | NED | 2023-01-20 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1957 | 1917 | 5.00 | 9 | 0.99 | 38 | 37.62 | |
| | Montsma, Foppe-Jan | | | 1845 | NED | 1.00 | 1 | 0.40 | 38 | 15.20 | | | Van Der Bent, Gideon | | | 1956 | NED | 0.50 | 1 | 0.05 | 38 | 1.90 | | | Huijzer, Joop | | | 2000 | NED | 1.00 | 1 | 0.61 | 38 | 23.18 | | | Borst, Filip | | | 1952 | NED | 0.50 | 1 | 0.05 | 38 | 1.90 | | | Kalle, Erwin | | | 2048 | NED | 1.00 | 1 | 0.68 | 38 | 25.84 | | | Mehra, Roger | | | 1942 | NED | 0.50 | 1 | 0.03 | 38 | 1.14 | | | Mohtaat, Homayoun | | | 1871 | AFG | 0.00 | 1 | -0.56 | 38 | -21.28 | | | Spruit, Paul | | | 2013 | NED | 0.00 | 1 | -0.37 | 38 | -14.06 | | | De Ruiter, Thomas | | | 1989 | NED | 0.50 | 1 | 0.10 | 38 | 3.80 | |
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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