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Individual Calculations February 2018 |
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| De Boer, Sake Jan Total change: 0.80 | |   |
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| Chess Festival Groningen 2017 - Open B | Groningen | NED | 2017-12-22 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1759 | 1524 | 0.00 | 2 | -0.42 | 20 | -8.40 | |
|  Huizinga, Egbert | | | 1817 | NED | 0.00 | 1 | -0.15 | 20 | -3.00 | |  Dekker, Jasper | | | 1700 | NED | 0.00 | 1 | -0.27 | 20 | -5.40 | |
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 2018 | Wijk aan Zee | NED | 2018-01-19 |
| Rc | Ro | w | n | change | K | K*chg | Game |
| 1515 | 1524 | 2.50 | 4 | 0.46 | 20 | 9.20 | |
| | Van Foreest, Nanne | | | 1456 | NED | 0.50 | 1 | -0.09 | 20 | -1.80 | | | Buschman, Rob | | | 1575 | NED | 0.50 | 1 | 0.07 | 20 | 1.40 | | | Moeller, Wolfgang | | | 1407 | GER | 0.50 | 1 | -0.16 | 20 | -3.20 | | | Van Haaften, Adriaan | | | 1623 | NED | 1.00 | 1 | 0.64 | 20 | 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) | | |
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