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Individual Calculations February 2019 |
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| Koopman, Jan Total change: -24.00 | |   |
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| Tata Steel Chess Tournament 2018 - Dagvierkampen | Wijk aan Zee | NED | 2019-01-14 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1552 | 1665 | 1.00 | 2 | -0.30 | 20 | -6.00 | |
|  O Mahony, Cian | | | 1495 | NED | 1.00 | 1 | 0.28 | 20 | 5.60 | |  Been, Klaas | | | 1609 | NED | 0.00 | 1 | -0.58 | 20 | -11.60 | |
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 Chess Tournament 2018 - Tienkampen | Wijk aan Zee | NED | 2019-01-18 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1486 | 1665 | 2.00 | 4 | -0.90 | 20 | -18.00 | |
| | Jansma, Dennis | | | 1360 | NED | 0.50 | 1 | -0.36 | 20 | -7.20 | | | Van Kuijk, Lazlo | | | 1559 | NED | 1.00 | 1 | 0.36 | 20 | 7.20 | | | Van Willigen, Jan | | | 1428 | NED | 0.50 | 1 | -0.30 | 20 | -6.00 | | | Doodeman, Bas | | | 1596 | NED | 0.00 | 1 | -0.60 | 20 | -12.00 | |
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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